Lester Hollar is vice president for human resources for a large manufacturing company. In recent years, he has noticed a

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Lester Hollar is vice president for human resources for a large
manufacturing company. In recent years, he has noticed an increase
in absenteeism that he thinks is related to the general health of
the employees. Four years ago, in an attempt to improve the
situation, he began a fitness program in which employees exercise
during their lunch hour. To evaluate the program, he selected a
random sample of eight participants and found the number of days
each was absent in the 6 months before the exercise program began
and in the 6 months following the exercise program. Following are
the results.
Click here for the Excel Data File

At the 0.050 significance level, can he conclude that the number of
absences has declined?

Required:

a. What are the null and alternate hypotheses?
multiple choice 1
H0: μBefore − μAfter = μd ≤
0 H1: μd >
0
H0: μBefore − μAfter = μd ≤
0 H1: μd <
0
H0: μBefore − μAfter = μd ≥
0 H1: μd >
0
b. Compute the test
statistic. (Round your answer to 3 decimal
places.)
c. Compute
the p-value. NOTE: P-value calculators are
available through online search. (Round your answer to
4 decimal places.)
d. What is your decision regarding the null
hypothesis?
multiple choice 2
Reject H0
Do not reject H0
e. Interpret the result.