An executive's telephone log showed the lengths of 65 calls initiated during the last week of July.
Question:
(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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Related Book For
Applied Statistics In Business And Economics
ISBN: 9780073521480
4th Edition
Authors: David Doane, Lori Seward
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