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Do Homework - Core Concept #4: Regression Lines Assumptions - Google Chrome X 20 mylab.pearson.com/Student/PlayerHomework.aspx?homeworkld=707893556questionld=21flushed=falsecld=8475831centerwin=yes Statistics for Texas Tech MBA - ONLINE Mayra Martinez 10/17/25 1:47 PM Homework: Core Concept #4: Regression Lines Assumptions HW Score: 39.06%, 12.5 of 32 points x Points: 0 of 1 Save Question list K An analyst at a credit card bank is looking at the relationship between customers' charges to the bank's card in two successive months. He selects 20 random customers, regresses charges in March ($) on charges in February ($), and finds an R" of 88%. He concludes that the model is a useful one for predicting one month's charges from the other. Examine the accompanying data and comment on his conclusions. :Click the icon to view the data. O Question 15 Select the correct choice below and fill in any answer boxes to complete your choice. Question 16 O A. There are two outliers that inflate R". Without those two points, R" drops from 88% to %. The analyst should set aside those two customers and refit the model. Round to the nearest integer as needed.) Question 17 O B. The analyst's conclusion is correct. O C. The analyst's conclusion is only somewhat correct. The linear model can be used, but only to predict March charges using February charges. Question 18 D. There are two outliers that decrease R". Without those two points, R" increases from 88% to %. The analyst should set aside those two customers and use the new model. (Round to the nearest integer as needed.) Question 19 Data Table X O Question 20 February ($) March ($) 576.61 1,589.58 338.69 24.95 58.57 777.27 x Question 21 33,244.00 43,628.82 1,540.81 2,214.95 339.78 394.77 3,642.21 ,613.70 O Question 22 31.69 306.41 49.34 0.00 97.39 2, 198.64 O Question 23 6,518.28 1, 183.18 1,959.58 5,984.23 1, 191.13 1,261.53 1,565.33 ,543.12 O Question 24 5,545.86 5,371.69 14,435.69 34,735.52 21.95 1,011.01 0.00 77.91 O Question 25 952.38 1,356.76 225.45 478.41 Help me solve this Video Get more help - Clear all Print Done Check