Public transportation and the automobile are two methods an employee can use to get to work each day. Samples of times recorded for each method are shown. Times are in minutes.

a. Compute the sample mean time to get to work for each method.
b. Compute the sample standard deviation for each method.
c. On the basis of your results from parts (a) and (b), which method of transportation should be preferred? Explain.
d. Develop a box plot for each method. Does a comparison of the box plots support your conclusion in part(c)?

Transcribed Image Text:

Public Transportation: 28 29 3237 33 25 29 32 434 37 33 25 29 32 41 34 Automohile 29 31 33 3234 30 3 32 35 33