P3.2 Data Description. Universal Package Service, Ltd., delivers small parcels to business addresses in the Greater Boston area. To learn more about the demand for its service, UPS has collected the following data on the number of deliveries per week for a sample of ten customers:

3 3 4 2 4 2 3 3 23 3

A. Calculate the mean, median, and mode measures of central tendency for the number of deliveries per week. Which measure does the best job of describing central tendency for this variable?

B. Calculate the range, variance, and standard deviation for this data series. Which measure does the best job of describing the dispersion in this variable?


P3.3 Data Description. Scanning America, Inc., is a small but rapidly growing firm in the digitized document translation business. The company reads architectural and engineering drawings into a scanning device that translates graphic information into a digitalized format that can be manipulated on a personal computer or workstation. During recent weeks, the company has added a total of 10 new clerical and secretarial personnel to help answer customer questions and process orders. Data on the number of years of work experience for these ten new workers are as follows:
5 3 3 5 4 5 4 3 4 3

A. Calculate the mean, median, and mode measures of central tendency for the number of years of work experience. Which measure does the best job of describing central tendency for this variable?

B. Calculate the range, variance, and standard deviation for this data series, and the 95% confidence interval within which you would expect to find the population’s true mean.

    • 7 years ago
    Universal Package Service, Ltd.
    NOT RATED

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      universal_package_service_ltd..xls