A senior manager, responsible for a group of 120 junior executives, is interested in the total amount
Question:
A random sample of 35 of these executives was asked to keep diary records during the next week. When the results were analyzed, it was found that these sample members spent a total of 143 hours in internal meetings.
The sample standard deviation was 3.1 hours.
Find a 90% confidence interval for the total number of hours spent in internal meetings by all 120 junior executives in the week.
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Related Book For
Statistics For Business And Economics
ISBN: 9780132745659
8th Edition
Authors: Paul Newbold, William Carlson, Betty Thorne
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