a. Suppose each package of hot chocolate yields a net profit of 28. Draw a box plot for the profit each club member generates. Find the median and inter-quartile range, and the mean and standard deviation for the profits. Compare your profit statistics with the original statistics describing the numbers of packages sold. How are the two sets of statistics and the graphs related?
b. Use your findings from 14a to predict the net profit statistics if the net profit per package is 35.
c. Suppose the school audit finds that each individual member actually sold 20 packages fewer than originally reported. Find the median and inter-quartile range, and the mean and standard deviation. Describe a process you could use to find the corrected results for all of the information requested in Exercise 13.
d. Use your findings from 14c to predict the statistical results if instead there were 10 packages fewer per member than originally reported.