Find sample mean time and standard error of mean

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Reference no: EM132119774

In a study to find the time to service customers, a bank teller worked 60 minutes and served 36 customers. A record of the individual service times showed Σ (X – X) 2 = 0.79 minutes 2 . Find (a) the sample mean time and (b) the standard error of the mean.

Reference no: EM132119774

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