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We wish to conduct a hypothesis test to determine if, on average, the homemaker in a family spends more time per week doing h
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Answer #1

Answer:

D. X̄d

Explanation:

Here, we have to compare the average time spend by the homemaker and other family members for doing house work or cooking. So, we need to use the paired t test for which the sample statistic is given as X̄d and population parameter is given as µd.

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