ELEMENTARY STATISTICS USING EXCEL
ELEMENTARY STATISTICS USING EXCEL
7th Edition
ISBN: 9780136921721
Author: Triola
Publisher: RENT PEARS
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Chapter 9.2, Problem 9BSC

a.

To determine

Test whether the claim that the samples are from populations with the same mean or not.

b.

To determine

Construct the confidence interval appropriate for the hypothesis test in part (a).

Check whether the confidence interval that causes us to reach the same conclusion from part (a).

c.

To determine

Check whether the background color appears to have an effect on word recall scores or not.

Identify if the background color appears to have an effect on word recall scores, then the color appears to be associated with higher word memory recall scores.

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