Why would the error bound change if the confidence level were lowered to 95%? One hundred eight

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Why would the error bound change if the confidence level were lowered to 95%?

One hundred eight Americans were surveyed to determine the number of hours they spend watching television each month. It was revealed that they watched an average of 151 hours each month with a standard deviation of 32 hours. Assume that the underlying population distribution is normal.

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Introductory Business Statistics

ISBN: 202318

1st Edition

Authors: Alexander Holmes , Barbara Illowsky , Susan Dean

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