On a particular day a consumer-advice bureau received 125 calls. For a random sample of 40 of
Question:
a. Find a 99% confidence interval for the mean time taken per call.
b. Find a 90% confidence interval for the total amount of time taken in answering these 125 calls.
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a 99 confidence interval 6964 ...View the full answer
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Related Book For
Statistics For Business And Economics
ISBN: 9780132745659
8th Edition
Authors: Paul Newbold, William Carlson, Betty Thorne
Question Posted:
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