Lunch breaks are often considered too short, and employees frequently develop a habit of stretching them.The manager

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Lunch breaks are often considered too short, and employees frequently develop a habit of €œstretching€ them.The manager at Giant Mart randomly identified 22 employees and observed the lengths of their lunch breaks (in minutes) for one randomly selected day during the week:
Lunch breaks are often considered too short, and employees frequently

a. Show evidence that the normality assumptions are satisfied.
b. Find the 95% confidence interval for €œmean length of lunch breaks€ at Giant Mart.

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Elementary Statistics

ISBN: 9780538733502

11th Edition

Authors: Robert R. Johnson, Patricia J. Kuby

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