Question: Repeat problem 4, doing parts (a) through (f), but this time predicting hours studied from test grade, and using values of 70, 75, and 80

Repeat problem 4, doing parts (a) through (f), but this time predicting hours studied from test grade, and using values of 70, 75, and 80 for parts (c), (d), and (e), respectively.
(a) Determine the linear prediction rule for predicting test grade from hours studied.
(b) Draw the regression line. Use the linear prediction rule to figure the predicted test grade of students who studied for each of the following number of hours:
(c) 3.
(d) 5.
(e) 7.
(f) Determine the standardized regression coefficient.

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