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Problem 7 A study of 427 college students was conducted to test whether high school GPA is a predictor of first-year college GPA. Students with higher High colgpa-: Grade point average in college (Range 085-397 ) hsgpa High school GPA (Range 2.29-4.5) school GPA are expected to do better in college. Model 1: OLS, N 427 Dependent variable: colgpa coefficient 0.9 0.4 std. error const hsgpa 0.15 R-squared: 0.854880 a. (3%) Write the ea ation for the least-squares regression line: y b. (3%) The null hypothesis is: ß tpick one) Bo (3%) Calculate the t-ratio- d. (3%) The critical value for the t distribution ( α-0.05 and dr=N-2)s e. (3%) Can we reject the rull hypothesis? tpekere) B
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(a)ite the cauation o e leost saueres yegression line (b) select e nul hpothes Se (B) o.15 -t を比-%25İ 0.05 1.962 a con se veject e n hypotlesis2 tatre heoter Al-an ital volve eeoreneje えhe nulhypo4hes

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