A manager wants to determine if there is a difference in the total amount of time spent workers between workers taking an work from home (WFH) and
A manager wants to determine if there is a difference in the total amount of time spent workers between workers taking an work from home (WFH) and
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 6E
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Question
A manager wants to determine if there is a difference in the total amount of time spent workers between workers taking an work from home (WFH) and a work from office (WFO) version of a certain duties. The following table contains the sample sizes of each group, and the rank sums for the Wilcoxon rank-sum test.
WFH | WFO | |
10 | 12 | |
Sums of Ranks | 94.5 | 158.5 |
- Specify the competing hypothesis to determine whether the
median working time for work from home (WFH) workers differs from the median study time for work from office (WFO) workers. - What is the value of the Wilcoxon rank-sum test statistic W?
- Assuming W follows a
normal distribution , what is the value of the corresponding test statistic? - At the 1% significance level, what is the decision and conclusion?
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