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# Relationship between seniority and days absent per year

15. A study is being made of the relationship between seniority, i.e., years of service with the company, and the number of workdays absent per year. The following table shows the relevant data for seven randomly selected employees.

Years Employed (X) Days Absent Last Year (Y)
7 2
8 0
2 5
3 6
5 4
3 9
7 2
35 28

What is the value of SSx?
a. 209
b. 1225
c. 750
d. 34
e. 25

16. A study is being made of the relationship between seniority, i.e., years of service with the company, and the number of workdays absent per year. The following table shows the relevant data for seven randomly selected employees.

Years Employed (X) Days Absent Last Year (Y)
13 2
14 0
8 5
9 6
8 4
3 9
7 2
35 28

Compute the correlation coefficient r.
a. 0.241
b. -.377
c. -.241
d. 0.864
e. -.864

17. A study is being made of the relationship between seniority, i.e., years of service with the company, and the number of workdays absent per year. The following table shows the relevant data for seven randomly selected employees.

Years Employed (X) Days Absent Last Year (Y)
17 2
18 0
12 5
13 6
10 4
3 9
7 2
35 28

What is the p-value for the test whether a significant correlation exists between seniority and the number of days absent?
a. <.005
b. Between .005 and.025
c. Between .01 and .025
d. Between .025 and .05
e. >.05

8. The Durbin-Watson statistic is used for testing the assumption of normality.

True or False

#### Solution Preview

15. A study is being made of the relationship between seniority, i.e., years of service with the company, and the number of workdays absent per year. The following table shows the relevant data for seven randomly selected employees.
Years Employed (X) Days Absent Last Year (Y)
7 2
8 0
2 5
3 6
5 4
3 9
7 2
35 28

What is the value of ...

#### Solution Summary

The relationship between seniority and days absent per year are determined.

\$2.19