Question: In order to ensure efficient usage of a server, it is necessary to estimate the mean number of concurrent users. According to records, the average

In order to ensure efficient usage of a server, it is necessary to estimate the mean number of concurrent users. According to records, the average number of concurrent users at 100 randomly selected times is 37.7, with a standard deviation = 9.2. Construct a 90% confidence interval for the expectation of the number of concurrent users.

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