Customers waiting at Ellerton Bank have been complaining about the amount of tim

Question

Customers waiting at Ellerton Bank have been complaining about the amount of time they must wait in line. Managers at the bank, beginning to investigate the problem, have recorded sample waiting times for 9 customers at the bank. Here are the 9 waiting times (in minutes): 17, 5, 7, 21, 12, 20, 19, 16, 25 (a) What is the median of tins data set? If your answer is not an integer, round your answer to at least one decimal place. (b) What is the mean of this data set? If your answer is not an integer, round your answer to at least one decimal place. (c) How many modes does the data set have, and what are their values? Indicate the number of modes by clicking in the appropriate circle, and then indicate the value(s) of the mode(s), if applicable. zero modes one mode: two modes:

Explanation / Answer

Data in ascending order : 5, 7, 12, 16, 17, 19, 20, 21, 25

a) median = middle most value = 17

b) mean = (5 + 7 + 12 + 16 + 17 + 19 + 20 + 21 + 25) / 9 = 15.8

c) zero modes.

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