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A large production plant has 600 employees. Following data shows the daily number of tea cups taken by a random sample of 15 employees 1,

A large production plant has 600 employees. Following data shows the daily number of tea cups taken by a random sample of 15 employees 1, 3, 1, 2, 3, 4, 1, 0, 2, 1, 4, 2, 1, 3 and 3. What is average and total number of daily tea cups taken by all the 600 employees? Also compute 95% confidence intervals for both of the estimates. It is known that 1.125.14 = 2.145

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