Question: A call centre would like to know the mean number of calls it receives during peak hours. The manager randomly selects 32 differentone-hour periods and

A call centre would like to know the mean number of calls it receives during peak hours. The manager randomly selects 32 differentone-hour periods and determines the number of calls for each. For thissample, x-bar equals 95 and s squared

s2 = 230.

What is the mean number of calls perone-hour period during peak hours with a99% confidenceinterval?

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