10.77 Predicting college debt.
Refer to Exercise 10.75. Figure 10.21 contains Minitab output for the simple linear regression of AvgDebt on InCostAid.
bestval
10.77
(a) . (b) . (c) The interval is (0.3473, 0.9567). For each $1000 of in-state cost, we expect on average an average debt of between $347 and $957 at graduation with 95% confidence.