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Mathematics, 09.12.2021 17:00 ja815792

4) In a time use study, 20 randomly selected managers spend a mean of 2.4 hours each day on paperwork. The standard deviation of the 20 times is 1.3 hours. Construct the 90% confidence interval for the mean paperwork time of all managers. .Which formula will you use

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4) In a time use study, 20 randomly selected managers spend a mean of 2.4 hours each day on paperwor...
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