Refer to the first confidence interval you calculated for the population mean duration of customer service calls.

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Refer to the first confidence interval you calculated for the population mean duration of customer service calls. Use this confidence interval to test whether this population mean differs from the following values, using level of significance α = 0.05.

a. 15 minutes

b. 20 minutes

c. 25 minutes

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Discovering Knowledge In Data An Introduction To Data Mining

ISBN: 9780470908747

2nd Edition

Authors: Daniel T. Larose, Chantal D. Larose

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