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Hypothesis testing for matched pairs

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Wize University Statistics Textbook > Match Pairs (Dependent Means)

Hypothesis Testing for Matched Pairs

3 Activities

Copeman is a private medical clinic in B.C. and Ontario. In their efforts to rebrand the company to make it look more luxurious, all the locations were renovated last year. The executives randomly sampled 25 locations from each province and compared their respective sales revenues before and after renovations. Results:

Sample mean of the differences = $5,285
Sample standard deviation of the differences = $25,875
Sample size n = 50

1. Determine the conclusion of the test at the 1% level of significance ( here difference=after−beforedifference = after - before )

More Hypothesis Testing for Matched Pairs Questions:
Hypothesis Testing: Matched Pairs
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Confidence Intervals for Matched Pairs
Copeman is a private medical clinic. It has a total of 185 locations in B.C. and Ontario. In their efforts to rebrand the company to make it look more luxurious, all the locations were renovated last year. The executives randomly sampled 25 locations from each province and compared their respective sales revenues before and after renovations. Results:
Sample mean of the differences, $5,285
Sample standard deviation of the differences, $25,875
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