Determine which of the following statements is descriptive in nature

1. Determine which of the following statements is descriptive in nature and which is inferential. Refer to the data below in How Old is My Fish?

How Old is My Fish

Average age by length of largemouth bass in new York State

Length

8

9

10

11

12

13

14

Age

2

3

3

4

4

5

5

a. All 9-inch largemouth bass in New York State are an average of 3 years old.

b. Of the largemouth bass used in the sample to make up th NYS DEC Freshwater Fishing Guide, the average age of 9-inch largemouth bass was 3 years.

In your answer also describe and explain the difference between descriptive statistics and inferential statistics.

Question 2

2. Since 1981, Fortune magazine has been tracking what they judge to be the “best 100 companies to work for.” The companies must be at least ten years old and employ no less than 500 people. Below are the top 25 from the list compiled in 1998, together with each company’s percentage of females, percentage of job growth over a 2 year span, and number of hours of professional training required each year by the employer.

Company Name

Women (%)

Job Growth (%)

Training (hr/yr)

       

Southwest Airlines

55

26

15

Kingston Technology

48

54

100

SAS Institute

53

34

32

FEL-Pro

36

10

60

TDIndustries

10

31

40

MBNA

58

48

48

W.L.Gore

43

26

27

Microsoft

29

22

8

Merck

52

24

40

Hewlett-Packard

37

10

0

Synovus Financial

65

23

13

Goldman Sachs

40

13

20

MOOG

19

17

25

DeLoitte & Touche

45

23

70

Corning

38

9

80

Wegmans Food Products

54

3

30

Harley-Davidson

22

15

50

Federal Express

32

11

40

Proctor & Gamble

40

1

25

Peoplesoft

44

122

0

First Tennessee Bank

70

1

60

J.M. Smucker

48

1

24

Granite Rock

17

29

43

Petagonia

52

5

62

Cisco Systems

25

189

80


a. Find the mean, range, variance, and standard deviation for each of the three variables shown in the list. Present your results in a table.

b. Using your results from (a), compare the distributions for job growth percentage and percentage of women employed. What can you conclude?

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