A call centre would like to know the mean number of calls it receives during peak...

A call centre would like to know the mean number of calls it receives during peak hours. The manager randomly selects 32 different one-hour periods and determines the number of calls for each. For this sample, x-bar equals 95 and s2 = 230.

What is the mean number of calls per one-hour period during peak hours with a 99% confidence interval?

A. 95 ± 2.68

B. 95 ± 104.73

C. 95 ± 6.90

D. 95 ± 5.25

Expert Solution

orchestra answered 2 years ago

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