Mathematics, 05.03.2021 01:40 sakugrey
The director of a customer service center wants to estimate the mean number of customer calls the center handles each day, so he randomly samples 29 different days and records the number of calls each day. The sample yields a mean of 279.4 calls with a standard deviation of 25.1 calls per day. He can be 99% confident that the mean number of calls per day is between 266.5 and . (Round your answer to 1 decimal place.)
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The director of a customer service center wants to estimate the mean number of customer calls the ce...
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