Final exam mkt 220 basic marketing concepts

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Final Exam


• Question 1               2 out of 2 points

Of the following choices, which would be the easiest brand name to legally protect?


• Question 2               2 out of 2 points

A product mix is best described as


• Question 3               2 out of 2 points

To make intangible products more tangible or real to the consumer, marketers often


• Question 4               2 out of 2 points

The Anderson Advertising Agency was developing a name for their client’s new paper towel product. They finally settled on the name, “Soaker.” Regarding the factors that marketers consider when selecting a brand name, which one does this best fulfill?


• Question 5               2 out of 2 points

Sales usually start to decline during the ____ stage of the product life cycle.


• Question 6               2 out of 2 points

Which of the following statements about nonprice competition is false?


• Question 7               0 out of 2 points

Price is considered to be the variable in the marketing mix that is


• Question 8               2 out of 2 points

One advantage of nonprice competition is that


• Question 9               2 out of 2 points

Sony management decided to use skimming as a pricing strategy for its newest line of high-definition television (HDTV) sets. It should be aware that this strategy doesnot


• Question 10               0 out of 2 points

When a company that produces computer printers prices them somewhat low, but the ink required to operate the printer is priced higher per relative usage, it is using


• Question 11               2 out of 2 points

Paid personal communication that seeks to inform customers and persuade them to purchase products in an exchange situation is


• Question 12               2 out of 2 points

Latisha works for a promotional consultant who develops sweepstakes, games, coupons, and rebate plans for various marketers. Latisha is developing which of the following?


• Question 13               2 out of 2 points

Chris sees a television commercial for Arby’s promoting its roast beef sandwiches at 5 for $5.95. Later that day he goes to the nearest Arby’s for a roast beef feast, but is told that the special offer is not available at that location. Arby’s seems to lack


• Question 14               2 out of 2 points

The Sharper Image likes to use nonpersonal communication in news story form such as press releases for its new and improved products. This is an example of


• Question 15               2 out of 2 points

A major benefit of using event sponsorship is that it


• Question 16                     2 out of 2 points

Children often achieve ____ by observing parents and older siblings in purchase situations and then through their own purchase experiences.

• Question 17                     2 out of 2 points

A major determining factor in deciding which type of problem-solving process should be used depends on the individual’s intensity of interest in a product and the importance of the product for that person. This is known as an individual’s


• Question 18                    2 out of 2 points

The three major categories of influences on the consumer buying decision process are:


• Question 19                   2 out of 2 points

In a period of economic recovery, the best marketing strategy for FedEx would be characterized by which of the following features?


• Question 20                  2 out of 2 points

Many aspects of consumer buying decisions are affected by the individual’s level of involvement. Level of involvement is


• Question 21                    2 out of 2 points

If Hefty Bags expresses concern that its products are having too great an impact on the pollution of ground water under landfills, this concern is directly related to the firm’s


• Question 22                 2 out of 2 points

In testing her firm’s new TV ads for Pokémon action figures, Beth discovers the ads make children think many of the action figures can actually fly. Beth now faces an ethical decision regarding which element of the marketing mix?

• Question 23                2 out of 2 points

Sometimes business must find a balance between society’s demand for social responsibility and investors’ desires for profits. This is an example of a(n) ___________ responsibility.

• Question 24                2 out of 2 points

Cameron Inc. is a very profitable automobile repair shop. The company is well known for its great service and involvement in the community, but it fails to properly dispose of its used oil as outlined in environmental regulations. Cameron is failing in its ______ responsibilities.

• Question 25               2 out of 2 points

The Browardton Quilters’ Guild has contacted all the major networks to try to warn people about the poor performance of miniature, hand-held sewing machines. These quilters are engaging in

• Question 26              0 out of 2 points

The undifferentiated targeting strategy for finding a target market will likely not be successful if


• Question 27              2 out of 2 points

A business advantage of the concentrated targeting strategy for any company is that it


• Question 28                 2 out of 2 points

A targeting strategy in which an organization directs its marketing efforts at several segments is called a(n) ____ targeting strategy.


• Question 29              2 out of 2 points

Segmentation variables are usually grouped into four categories:


• Question 30              2 out of 2 points

The ProMark Company manufactures a pencil that is about five inches long and has no eraser. It sells the product primarily to golf courses and universities. What type of targeting strategy is the ProMark Company using?


• Question 31              2 out of 2 points

The forces of the marketing environment primarily affect marketers in three ways: They influence customers by affecting their lifestyles and preferences for products; they determine whether or how a marketing manager can perform certain marketing activities; and they


• Question 32              2 out of 2 points

The equation a buyer applies to assess a product’s value is


• Question 33              2 out of 2 points

The focal point of all marketing activities is


• Question 34                2 out of 2 points

Marketing is the process of


• Question 35              2 out of 2 points

Making modifications to packaging or brand names involves the ____ component of the marketing mix.


• Question 36              2 out of 2 points

Consumers buying products online have dramatically affected the ____ variable of the marketing mix.


• Question 37              2 out of 2 points

Which of the following is most likely to be an idea marketer?


• Question 38              2 out of 2 points

Boca Burger’s website features information about products, recipes, and nutritional values, but customers cannot actually purchase products from the website. This website is most likely used primarily as a ____ marketing tool.


• Question 39              2 out of 2 points

The definition of marketing implies that ____ should receive benefits from exchange relationships.


• Question 40              2 out of 2 points

When Ikea showcases rooms of furniture on its website, it lists each item in the room. However, if customers like all of the items, they can purchase them as a bundle. Which of the following aspects of the marketing mix is Ikea likely altering?


• Question 41              2 out of 2 points

In managing customer relationships, the three primary ways profits can be obtained are by


• Question 42              2 out of 2 points

Marketing managers strive to develop a marketing mix that


• Question 43              2 out of 2 points

The application of mechanical and human efforts to either people or objects to provide intangible benefits to customers is known as a(n)


• Question 44              2 out of 2 points

The three basic forms that a product can take are


• Question 45              2 out of 2 points

Which of the following scenarios involves the distribution element of the marketing mix?


• Question 46              0 out of 2 points

The advertising campaign for Crest toothpaste lets consumers know about its newest flavor, and also mentions its history as an established brand. The ad also mentions Crest’s advantages and benefits. Crest’s advertising would be classified as


• Question 47              0 out of 2 points

Soft drink companies advertise that their products beat the competition in national “taste tests,” and they refer to the rival brands by name. This type of advertising is best described as


• Question 48              2 out of 2 points

The two major types of product advertising are


• Question 49              2 out of 2 points

The cost per thousand (CPM) indicator shows


• Question 50              2 out of 2 points

Toyota’s sponsorship of a major Professional Golf Association tournament would be an example of a(n) ____ tool.

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July 1, 2023

Question 1 of 40
z = 1.8 for Ha: µ > claimed value. What is the P-value for the test?
A. 0.9641
B. 3.59
C. 96.41
D. 0.0359
Question 2 of 40
A nationwide study of American homeowners revealed that 65% have one or more lawn mowers. A lawn equipment manufacturer, located in Omaha, feels the estimate is too low for households in Omaha. Find the P-value for a test of the claim that the proportion with lawn mowers in Omaha is higher than 65%. Among 497 randomly selected homes in Omaha, 340 had one or more lawn mowers. Use Table 5.1 to find the best answer.
A. 0.0559
B. 0.1118
C. 0.0252
D. 0.0505
Question 3 of 40
A right-tailed test is conducted at the 5% significance level. Which of the following z-scores is the smallest one in absolute value that leads to rejection of the null hypothesis?
A. 1.61
B. 1.85
C. -1.98
D. -2.06
Question 4 of 40
A study of a brand of “in the shell peanuts” gives the following results:
A significant event at the 0.01 level is a fan getting a bag with how many peanuts?
A. 30 peanuts
B. 25 or 30 peanuts
C. 25 or 55 peanuts
D. 25 peanuts
Question 5 of 40
The principal of a middle school claims that annual incomes of the families of the seventh-graders at his school vary more than the annual incomes of the families of the seventh-graders at a neighboring school, which have variation described by s = $13,700. Assume that a hypothesis test of the claim has been conducted and that the conclusion of the test was to reject the null hypothesis. Identify the population to which the results of the test apply.
A. The current seventh graders at the principal’s school
B. Seventh graders’ families at the school with a standard deviation of $13,700
C. All of the families of the class of seventh graders at the principal’s school
D. All seventh graders’ families
Question 6 of 40
A two-tailed test is conducted at the 5% significance level. What is the P-value required to reject the null hypothesis?
A. Greater than or equal to 0.10
B. Less than or equal to 0.05
C. Less than or equal to 0.10
D. Greater than or equal to 0.05
Question 7 of 40
A consumer advocacy group claims that the mean amount of juice in a 16
ounce bottled drink is not 16 ounces, as stated by the bottler.
Determine the null and alternative hypotheses for the test described.
A. H0: µ = 16 ounces Ha: µ < 16 ounces
B. H0: µ ¹ 16 ounces Ha: µ = 16 ounces
C. H0: µ = 16 ounces Ha: µ > 16 ounces
D. H0: µ = 16 ounces Ha: µ ¹ 16 ounces
Question 8 of 40
A long-distance telephone company claims that the mean duration of long-distance telephone calls originating in one town was greater than 9.4 minutes, which is the average for the state. Determine the conclusion of the hypothesis test assuming that the results of the sampling do not lead to rejection of the null hypothesis.
A. Conclusion: Support the claim that the mean is less than 9.4 minutes.
B. Conclusion: Support the claim that the mean is greater than 9.4 minutes.
C. Conclusion: Support the claim that the mean is equal to 9.4 minutes.
D. Conclusion: Do not support the claim that the mean is greater than 9.4 minutes.
Question 9 of 40
A consumer group claims that the mean running time for a certain type of flashlight battery is not the same as the manufacturer’s claims. Determine the null and alternative hypotheses for the test described.
A. H0: µ = Manufacturer’s claims Ha: µ < Manufacturer’s claims
B. H0: µ = Manufacturer’s claims Ha: µ ¹ Manufacturer’s claims
C. H0: µ = Manufacturer’s claims Ha: µ > Manufacturer’s claims
D. H0: µ ¹ Manufacturer’s claims Ha: µ = Manufacturer’s claims
Question 10 of 40
In 1990, the average duration of long-distance telephone calls originating in one town was 9.4 minutes. A long-distance telephone company wants to perform a hypothesis test to determine whether the average duration of long-distance phone calls has changed from the 1990 mean of 9.4 minutes. The mean duration for a random sample of 50 calls originating in the town was 8.6 minutes. Does the data provide sufficient evidence to conclude that the mean call duration, µ, is different from the 1990 mean of 9.4 minutes? Perform the appropriate hypothesis test using a significance level of 0.01. Assume that s = 4.8 minutes.
A. With a z of -1.2 there is sufficient evidence to conclude that the mean
value has changed from the 1990 mean of 9.4 minutes.
B. With a P-value of 0.2302 there is not sufficient evidence to conclude
that the mean value is less than the 1990 mean of 9.4 minutes.
C. With a P-value of 0.2302 there is sufficient evidence to conclude that
the mean value is less than the 1990 mean of 9.4 minutes.
D. With a z of –1.2 there is not sufficient evidence to conclude that the
mean value has changed from the 1990 mean of 9.4 minutes.

Question 11 of 40
A researcher claims that the amounts of acetaminophen in a certain brand of cold tablets have a mean different from the 600 mg claimed by the manufacturer. Test this claim at the 0.02 level of significance. The mean acetaminophen content for a random sample of n = 41 tablets is 603.3 mg. Assume that the population standard deviation is 4.9 mg.
A. Since the test statistic is greater than the critical z, there is sufficient evidence to accept the null hypothesis and to support the claim that the mean content of acetaminophen is 600 mg.
B. Since the test statistic is greater than the critical z, there is sufficient evidence to reject the null hypothesis and to support the claim that the mean content of acetaminophen is not 600 mg.
C. Since the test statistic is less than the critical z, there is sufficient evidence to reject the null hypothesis and to support the claim that the mean content of acetaminophen is not 600 mg.
D. Since the test statistic is greater than the critical z, there is insufficient evidence to reject the null hypothesis and to support the claim that the mean content of acetaminophen is not 600 mg.
Question 12 of 40
A poll of 1,068 adult Americans reveals that 52% of the voters surveyed prefer the Democratic candidate for the presidency. At the 0.05 significance level, test the claim that more than half of all voters prefer the Democrat.
A. Reject the null hypothesis. Conclude that there is insufficient evidence that more than half of all voters prefer Democrats.
B. Do not reject the null hypothesis. Conclude that there is sufficient evidence that more than half of all voters prefer Democrats.
C. Reject the null hypothesis. Conclude that there is sufficient evidence that more than half of all voters prefer Democrats.
D. Do not reject the null hypothesis. Conclude that there is insufficient evidence that more than half of all voters prefer Democrats.
Question 13 of 40
A manufacturer claims that the mean amount of juice in its 16 ounce bottles is 16.1 ounces. A consumer advocacy group wants to perform a hypothesis test to determine whether the mean amount is actually less than this. The mean volume of juice for a random sample of 70 bottles was 15.94 ounces. Do the data provide sufficient evidence to conclude that the mean amount of juice for all 16-ounce bottles, µ, is less than 16.1 ounces? Perform the appropriate hypothesis test using a significance level of 0.10. Assume that s = 0.9 ounces.
A. The z of - 1.49 provides sufficient evidence to conclude that the mean amount of juice is less than 16.1 oz.
B. The z of - 1.49 does not provide sufficient evidence to conclude that the mean amount of juice is less than 16.1 oz.
C. The z of - 0.1778 does not provide sufficient evidence to conclude that the mean amount of juice is less than 16.1 oz.
D. The z of - 0.1778 provides sufficient evidence to conclude that the mean amount of juice is less than 16.1 oz.
Question 14 of 40
In the past, the mean running time for a certain type of flashlight battery has been 9.8 hours. The manufacturer has introduced a change in the production method and wants to perform a hypothesis test to determine whether the mean running time has increased as a result. The hypotheses are:
H0 : µ = 9.8 hours
Ha : µ > 9.8 hours
Suppose that the results of the sampling lead to rejection of the null hypothesis. Classify that conclusion as a Type I error, a Type II error, or a correct decision, if in fact the mean running time has not increased.
A. Type I error
B. Type II error
C. Correct decision
D. Can not be determined from this information
Question 15 of 40
The owner of a football team claims that the average attendance at home games is over 3000, and he is therefore justified in moving the team to a city with a larger stadium. Assuming that a hypothesis test of the claim has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in non-technical terms.
A. There is sufficient evidence to support the claim that the mean attendance is greater than 3000.
B. There is sufficient evidence to support the claim that the mean attendance is equal to 3000.
C. There is not sufficient evidence to support the claim that the mean attendance is greater than 3000.
D. There is not sufficient evidence to support the claim that the mean attendance is less than 3000.
Question 16 of 40
A skeptical paranormal researcher claims that the proportion of Americans that have seen a UFO is less than 1 in every one thousand. State the null hypothesis and the alternative hypothesis for a test of significance.
A. H0: p = 0.001 Ha: p > 0.001
B. H0: p = 0.001 Ha: p < 0.001
C. H0: p > 0.001 Ha: p = 0.001
D. H0: p < 0.001 Ha: p = 0.001
Question 17 of 40
At one school, the mean amount of time that tenth-graders spend watching television each week is 18.4 hours. The principal introduces a campaign to encourage the students to watch less television. One year later, the principal wants to perform a hypothesis test to determine whether the average amount of time spent watching television per week has decreased.
Formulate the null and alternative hypotheses for the study described.
A. Ho: µ = 18.4 hours H a : µ ¹ 18.4 hours
B. Ho: µ = 18.4 hours H a : µ < 18.4 hours
C. Ho: µ ³ 18.4 hours H a : µ < 18.4 hours
D. Ho: µ = 18.4 hours H a : µ > 18.4 hours
Question 18 of 40
without computing a P-value, determine whether the alternate hypothesis is supported and give a reason for your conclusion.
A. is less than 1 standard deviation above the claimed mean.
B. is more than 4 standard deviations above the claimed mean.
C. is less than 1 standard deviation above the claimed mean.
D. is more than 4 standard deviations above the claimed mean.

Question 19 of 40
A psychologist claims that more than 29 percent of the professional population suffers from problems due to extreme shyness. Assuming that a hypothesis test of the claim has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in non-technical terms.
A. There is sufficient evidence to support the claim that the true proportion is less than 29 percent.
B. There is not sufficient evidence to support the claim that the true proportion is greater than 29 percent.
C. There is sufficient evidence to support the claim that the true proportion is equal to 29 percent.
D. There is sufficient evidence to support the claim that the true proportion is greater than 29 percent.
Question 20 of 40
A two-tailed test is conducted at the 5% significance level. Which of the z-scores below is the smallest one that leads to rejection of the null hypothesis?
A. 1.12
B. 1.48
C. 1.84
D. 2.15

Question 21 of 40
One hundred people are selected at random and tested for colorblindness to determine whether gender and colorblindness are independent.
The critical value of X2 for a 2 x 2 table using a 0.05 significance level is 3.841. If the value of the X2 statistic is 4.613, state your conclusion about the relationship between gender and colorblindness.
A. Reject H0. There is not sufficient evidence to support the claim that gender and colorblindness are related.
B. Reject H0. There is sufficient evidence to support the claim that gender and colorblindness are related.
C. Do not Reject H0. There is sufficient evidence to support the claim that gender and colorblindness are related.
D. Do not Reject H0. There is not sufficient evidence to support the claim that gender and colorblindness are related.
Question 22 of 40
A large test statistic F tells us that the sample means __________ the data within the individual samples, which would be unlikely if the populations means really were equal (as the null hypothesis claims).
A. differ more than
B. differ less than
C. are equal to
D. do not vary with
Question 23 of 40
A 95% confidence interval for the mean of a normal population is found to be 15.6 < µ < 24.8. What is the margin of error?
A. 4.4
B. 4.6
C. 4.8
D. 5.0

Question 24 of 40
One hundred people are selected at random and tested for colorblindness to determine whether gender and colorblindness are independent.
The critical value of X2 for a 2 x 2 table using a 0.05 significance level is 3.841. If the value of the X2 statistic is 3.427, state your conclusion about the relationship between gender and colorblindness.
A. Do not reject H0. There is not sufficient evidence to support the claim that gender and colorblindness are related.
B. Do not reject H0. There is sufficient evidence to support the claim that gender and colorblindness are related.
C. Reject H0. There is not sufficient evidence to support the claim that gender and colorblindness are related.
D. Reject H0. There is sufficient evidence to support the claim that gender and colorblindness are related.
Question 25 of 40
The margin of error in estimating the population mean of a normal population is E = 9.3 when the sample size is 15. If the sample size had been 18 and the sample standard deviation did not change, would the margin of error be larger or smaller than 9.3? Explain your answer.
A. Smaller. E decreases as the square root of the sample size gets larger.
B. Smaller. E increases as the square root of the sample size gets larger.
C. Larger. E decreases as the square root of the sample size gets larger.
D. Larger. E increases as the square root of the sample size gets larger.

Question 26 of 40
The following data were analyzed using one-way analysis of variance.
A B C
34 27 19
26 23 31
31 29 22
28 21 22
Which one of the following statements is correct?
A. The purpose of the analysis is to determine whether the groups A, B, and C are independent.
B. The purpose of the analysis is to test the hypothesis that the population means of the three groups are equal.
C. The purpose of the analysis is to test the hypothesis that the population variances of the three groups are equal.
D. The purpose of the analysis is to test the hypothesis that the sample means of the three groups are equal.
Question 27 of 40
Which of the following statements is true?
A. The t distribution can be used when finding a confidence interval for the population mean whenever the sample size is small.
B. The p distribution can be used when finding a confidence interval for the population mean whenever the sample size is small.
C. The t distribution cannot be used when finding a confidence interval for the population mean whenever the sample size is small.
D. The p distribution cannot be used when finding a confidence interval for the sample mean whenever the sample size is small.
Question 28 of 40
The __________ test statistic is for the one-way analysis of variance.
A. P-Value
B. t
C. F
D. p
Question 29 of 40
Which of the following statements is true?
A. The t distribution cannot be used when finding a confidence interval for the population mean with a small sample whenever the sample comes from a symmetric population.
B. The t distribution can be used when finding a confidence interval for the population mean with a small sample whenever the sample comes from a symmetric population.
C. The p distribution can be used when finding a confidence interval for the population mean with a small sample whenever the sample comes from a symmetric population.
D. The p distribution can be used when finding a confidence interval for the population mean with a small sample whenever the sample comes from a symmetric population.
Question 30 of 40
One hundred people are selected at random and tested for colorblindness to determine whether gender and colorblindness are independent. The following counts were observed.
Colorblind Not Colorblind Total
Male 8 52 60
Female 2 38 40
Total 10 90 100
If gender and colorblindness are independent, find the expected values corresponding to the four combinations of gender and colorblindness, and enter them in the following table along with row and column totals.
Colorblind Not Colorblind Total
Male
Female
Total
A. Male Colorblind 6.0; Male Not Colorblind 54.0
B. Male Colorblind 7.0; Male Not Colorblind 53.0
C. Male Colorblind 8.0; Male Not Colorblind 52.0
D. Male Colorblind 6.0; Male Not Colorblind 53.0
Question 31 of 40 0.0/ 2.5 Points
One hundred people are selected at random and tested for colorblindness to determine whether gender and colorblindness are independent. The following counts were observed.
Colorblind Not Colorblind Total
Male 7 53 60
Female 1 39 40
Total 8 92 100
State the null and alternative hypothesis for the information above.
A.
H0: Colorblindness and gender are dependent characteristics.
Ha: Colorblindness and gender are related in some way.
B.
H0: Colorblindness and gender are independent characteristics.
Ha: Colorblindness and gender are not related in any way.
C.
H0: Colorblindness and gender are dependent characteristics.
Ha: Colorblindness and gender are not related in any way.
D.
H0: Colorblindness and gender are independent characteristics.
Ha: Colorblindness and gender are related in some way.
Question 32 of 40
A golfer wished to find a ball that would travel more than 170 yards when hit with his 6-iron with a club head speed of 90 miles per hour. He had a golf equipment lab test a low compression ball by having a robot swing his club 12 times at the required speed. State the null and alternative hypotheses for this test.
A. H0: µ > 170; Ha: µ = 170
B. H0: µ < 170; Ha: µ = 170
C. H0: µ = 170; Ha: µ > 170
D. H0: µ = 160; Ha: µ > 160

Question 33 of 40
A golfer wished to find a ball that would travel more than 180 yards when hit with his 5-iron with a club speed of 90 miles per hour. He had a golf equipment lab test a low compression ball by having a robot swing his club 7 times at the required speed.
Data from this test resulted in a sample mean of 184.2 yards and a sample standard deviation of 5.8 yards. Assuming normality, carry out a hypothesis test at the 0.05 significance level to determine whether the ball meets the golfer’s requirements. Use the partial t-table below.
Area in one tail
0.025 0.05
Area in two tails
Degrees of
Freedom
n - 1 0.05 0.10
6 2.447 1.943
7 2.365 1.895
8 2.306 1.860
9 2.262 1.833
A. Reject the null hypothesis. The data do not provide sufficient evidence that the average distance is greater than 180 yards.
B. Reject the null hypothesis. The data do provide sufficient evidence that the average distance is greater than 180 yards.
C. Do not reject the null hypothesis. The data do provide sufficient evidence that the average distance is greater than 180 yards.
D. Do not reject the null hypothesis. The data do not provide sufficient evidence that the average distance is greater than 180 yards.

Question 34 of 40
One hundred people are selected at random and tested for colorblindness to determine whether gender and colorblindness are independent. The following counts were observed.
Colorblind Not Colorblind Total
Male 8 52 60
Female 2 38 40
Total 10 90 100
State the null and alternative hypothesis for the test associated with this data.
A.
H0: Colorblindness and gender are dependent characteristics.
Ha: Colorblindness and gender are not related in any way.
B.
H0: Colorblindness and gender are dependent characteristics.
Ha: Colorblindness and gender are related in some way.
C.
H0: Colorblindness and gender are independent characteristics.
Ha: Colorblindness and gender are not related in any way.
D.
H0: Colorblindness and gender are independent characteristics.
Ha: Colorblindness and gender are related in some way.
Question 35 of 40
A 95% confidence interval for the mean of a normal population is found to be 17.6 < µ < 23.6. What is the margin of error?
A. 2.0
B. 2.7
C. 3.0
D. 4.0

Question 36 of 40
One hundred people are selected at random and tested for colorblindness to determine whether gender and colorblindness are independent. The following counts were observed.
Colorblind Not Colorblind Total
Male 7 53 60
Female 1 39 40
Total 8 92 100
Find the value of the X2 statistic for the data above.
A. 1.325
B. 1.318
C. 1.286
D. 1.264
None of the above answer choices is correct. This has been a chronic issue
with this problem set.
Question 37 of 40
A golfer wished to find a ball that would travel more than 160 yards when hit with his 7-iron with a club speed of 90 miles per hour. He had a golf equipment lab test a low compression ball by having a robot swing his club 8 times at the required speed.
Data from this test resulted in a sample mean of 163.2 yards with a sample standard deviation of 5.8 yards. Assuming normality, carry out a hypothesis test at the 0.05 significance level to determine whether the ball meets the golfer’s requirements. Use the partial t-table below to solve this problem.
A. Do not reject the null hypothesis. The data do not provide sufficient
evidence that the average distance is greater than 160 yards.
B. Reject the null hypothesis. The data does provide sufficient evidence that the average distance is greater than 160 yards.
C. t= 1.2334; Critical value = 1.992
D. Insufficient information to answer this question.
Question 38 of 40
A 95% confidence interval for the mean of a normal population is found to be 15.6 < µ < 25.2. What is the margin of error?
A. 3.9
B. 4.8
C. 4.9
D. 3.7
Question 39 of 40
A 95% confidence interval for the mean of a normal population is found to be 13.2 < µ < 22.4. What is the margin of error?
A. 4.6
B. 4.4
C. 4.2
D. 5.6
Question 40 of 40
A simple random sample from a normal distribution is taken in order to obtain a 95% confidence interval for the population mean. If the sample size is 8, the sample mean x̄ is 22, and the sample standard deviation s is 6.3, what is the margin of error? Show your answer to 2 decimal places.
A. df = 7; E = 3.3445.38 = 5.6566
B. df = 8; E = 3.3445.38 = 5.6566
C. df = 6; E = 2.3656.38 = 5.769
D. df = 7; E = 2.3656.38 = 5.869

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August 22, 2022

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August 22, 2022

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August 5, 2021

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August 5, 2021

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August 5, 2021

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August 5, 2021

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August 5, 2021

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August 5, 2021

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August 5, 2021

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August 5, 2021

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August 5, 2021

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August 5, 2021

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August 5, 2021

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August 5, 2021

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August 5, 2021

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August 5, 2021

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August 5, 2021

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August 5, 2021

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August 5, 2021

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August 5, 2021

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August 5, 2021

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August 5, 2021

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August 5, 2021

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August 5, 2021

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August 5, 2021

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