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3.*       Public transportation and the automobile are two methods an employee can use to get to work...

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Basic Math

3.*       Public transportationand the automobile are two methods an employee can use to get towork each day. Samples of times recorded for each method are shown.Times are in minutes.

           Public Transportation:       18   15   13   20  22   17   11   14   3   16

           Automobile:                      12   24   19   21  19   25   23   9    17 10

           a)         Compute thesample mean time to get to work for each method.

           b)         Compute thesample standard deviation for each method.

             c)         On the basis ofyour results from a) and b), which method of transportation shouldbe preferred? Please explain.

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