Question: During the 1999 holiday shopping season Keynote Systems Inc visited

During the 1999 holiday shopping season, Keynote Systems, Inc. visited a number of e-commerce websites to see how long it took for the site to come up on the PC of a consumer using a 56K modem. The average time for was 23.35 seconds. Under the assumption that the company visited Wal-Mart’s site on 50 occasions and obtained the sample times (in seconds) in data file XR03025, determine and interpret:
a. The mean, median, range, and midrange.
b. The mean absolute deviation.
c. The standard deviation and variance.

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