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4. Show all your work. Indicate clearly the methods you use, because you will be scored on the correctness of your methods as well as on the accuracy and completeness of your results and explanations. Thirty-four college students were asked how much money they spent on textbooks for the current semester. Their responses are shown in the following stemplot. |233455678 2 123 4 5 6 8 8 9 9 9 3 12 2 78 9 4 1457 13 2 1 Key: 1 | 2 = $120 (a) Describe a procedure for identifying potential outliers, and use the procedure to decide whether there are outliers among the responses for the money spent on textbooks. (b) Based on the stemplot, write a few sentences describing the distribution of money spent on textbooks for the 34 students