Axion Revisionsbyr, a Swedish accounting firm, employs 268 junior accountants. In a random sample of 49 of
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Axion Revisionsbyrå, a Swedish accounting firm, employs 268 junior accountants. In a random sample of 49 of these, the mean number of hours overtime billed in a particular week was 7.6, and the sample standard deviation was 4.7 hours.
a. Find a 90% confidence interval for the mean number of hours overtime billed per junior accountant at Axion that week.
b. Find a 95% confidence interval for the total number of hours overtime billed by junior accountants at Axion during the week of interest.
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Related Book For
Statistics For Business And Economics
ISBN: 9781292315034
9th Global Edition
Authors: Paul Newbold, William Carlson, Betty Thorne
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