BA215 Week1 Assignment

Question 1
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
Kingston Technology
SAS Institute
FEL-Pro
TDIndustries
MBNA
W.L.Gore
Microsoft
Merck

55
48
53
36
10
58
43
29
52

26
54
34
10
31
48
26
22
24

15
100
32
60
40
48
27
8
40

Hewlett-Packard
Synovus Financial
Goldman Sachs
MOOG
DeLoitte & Touche
Corning
Wegmans Food Products
Harley-Davidson
Federal Express
Proctor & Gamble
Peoplesoft
First Tennessee Bank
J.M. Smucker
Granite Rock
Petagonia
Cisco Systems

37
65
40
19
45
38
54
22
32
40
44
70
48
17
52
25

10
23
13
17
23
9
3
15
11
1
122
1
1
29
5
189

0
13
20
25
70
80
30
50
40
25
0
60
24
43
62
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?