An employee at the Purchasing Department claims that he and a few other employees do almost all the work. In support of his claim, he collects the accompanying data on the number of purchase orders cleared and processed by each of the 16 members of the department in a typical week. Calculate all measures of central tendency and dispersion for these data and evaluate this employee’s claim. Do a few employees do almost all the work? 

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12 20 22 37 8 15 14 23 15 16 32 40 17 19 24 21