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#3 In a time use study 25 randomly selected managers were found to spend a mean time of 2.4 hours per day on paperwork with

#3 In a time use study 25 randomly selected managers were found to spend a mean time of 2.4 hours per day on paperwork with a standard deviation of 1.30 hours. Construct a 98% confidence interval for u, the mean time spent on paperwork by all managers

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