Question

An executive's telephone log showed the lengths of 65 calls initiated during the last week of July.
(a) Use Excel or MegaStat to sort and standardize the data.
(b) Based on the standardized z-scores, are there outliers? Unusual data values?
(c) Compare the percent of observations that lie within 1 and 2 standard deviations of the mean with a normal distribution. What is your conclusion?


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  • CreatedAugust 19, 2015
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