1. A company is evaluating the impact of a wellness program offered on-site as a means reducing emplovee sick days. A total of 8 employees agree to participate in the evaluation which lasts 12 weeks. Their sick days in the 12 months prior to the start of the wellness program and again over the 12 months after the completion of the program are recorded and are shown below. Is there a significant reduction in the number of sick days taken after completing the wellness program? Use the Sign Test at a 5% level of significance. Complete the table below. Employee |Sick Days Taken in|Sick Days TakenDifference Sign 12 Months Prior toin 12 Months(Reduction - FollowingPrior-After) Program ogram 7 6 4 7 4 Alpha- n- Critical value- Smaller of the number of positive or negative signs- Based on comparing the smaller of the number of positive or negative signs to the Critical value which of the following is (are) true? A. There is statistically significant evidence at alpha-0.05 to show that the median difference (reduction) is positive. B. There is not statistically significant evidence at alpha-0.05 to show that the median difference (reduction) is positive. C. There are not enough data points to reach a conclusion D. The tied value makes the analvsis suspect.
1. A company is evaluating the impact of a wellness program offered on-site as a means reducing emplovee sick days. A total of 8 employees agree to participate in the evaluation which lasts 12 weeks. Their sick days in the 12 months prior to the start of the wellness program and again over the 12 months after the completion of the program are recorded and are shown below. Is there a significant reduction in the number of sick days taken after completing the wellness program? Use the Sign Test at a 5% level of significance. Complete the table below. Employee |Sick Days Taken in|Sick Days TakenDifference Sign 12 Months Prior toin 12 Months(Reduction - FollowingPrior-After) Program ogram 7 6 4 7 4 Alpha- n- Critical value- Smaller of the number of positive or negative signs- Based on comparing the smaller of the number of positive or negative signs to the Critical value which of the following is (are) true? A. There is statistically significant evidence at alpha-0.05 to show that the median difference (reduction) is positive. B. There is not statistically significant evidence at alpha-0.05 to show that the median difference (reduction) is positive. C. There are not enough data points to reach a conclusion D. The tied value makes the analvsis suspect.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:1. A company is evaluating the impact of a wellness program offered on-site as a means
reducing emplovee sick days. A total of 8 employees agree to participate in the
evaluation which lasts 12 weeks. Their sick days in the 12 months prior to the start of
the wellness program and again over the 12 months after the completion of the
program are recorded and are shown below. Is there a significant reduction in the
number of sick days taken after completing the wellness program? Use the Sign Test
at a 5% level of significance.
Complete the table below.
Employee |Sick Days Taken in|Sick Days TakenDifference
Sign
12 Months Prior toin 12 Months(Reduction -
FollowingPrior-After)
Program
ogram
7
6
4
7
4
Alpha-
n-
Critical value-
Smaller of the number of positive or negative signs-
Based on comparing the smaller of the number of positive or negative signs to the
Critical value which of the following is (are) true?
A. There is statistically significant evidence at alpha-0.05 to show that the median
difference (reduction) is positive.
B. There is not statistically significant evidence at alpha-0.05 to show that the
median difference (reduction) is positive.
C. There are not enough data points to reach a conclusion
D. The tied value makes the analvsis suspect.
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