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In a survey of customer service call duration, a sample of 25 calls has an average duration of 4.5 minutes with a standard deviation of
In a survey of customer service call duration, a sample of 25 calls has an average duration of 4.5 minutes with a standard deviation of 1 minute. Test the alternate hypothesis that the mean call duration, ?, is less than 4.8 minutes. What is the p-value of your test
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Calculus
Authors: Dale Varberg, Edwin J. Purcell, Steven E. Rigdon
9th edition
131429248, 978-0131429246
