Question

1. In 2002, there were 23 states in which more than 50% of high school graduates took the SAT test. The following printout gives the regression analysis for predicting SAT Math from SAT Verbal. The regression equation is Predictor Coef St Dev t ratio P Constant 185.77 71.45 2.60 0.017 Verbal 0.6419 0.1420 4.52 0.000 s = 7.457 R-sq = 49.3% R-sq(adj) = 46.9% a. What is the equation of the least-squares regression line for predicting Math SAT score from Verbal SAT score? b. Write the hypotheses to perform a linear regression t-test. c. Verify the assumptions / conditions necessary to perform this test. Fill in the blanks with the correct term. 1) The data must be 2) The scatterplot must be roughly and free of any 3) The residuals plot must show 4) This sample must be representative or 5) A histogram of the residuals must be & d. State the decision on the Null Hypothesis and the conclusion for this test.

          1. In 2002, there were 23 states in which more than 50% of high school graduates took the SAT test. The following printout gives the regression analysis for predicting SAT Math from SAT Verbal.

The regression equation is

Predictor Coef St Dev t ratio P
Constant 185.77 71.45 2.60 0.017
Verbal 0.6419 0.1420 4.52 0.000
s = 7.457 R-sq = 49.3% R-sq(adj) = 46.9%

a. What is the equation of the least-squares regression line for predicting Math SAT score from Verbal SAT score?

b. Write the hypotheses to perform a linear regression t-test.

c. Verify the assumptions / conditions necessary to perform this test. Fill in the blanks with the correct term.

1) The data must be 

2) The scatterplot must be roughly 

and free of any 

3) The residuals plot must show 

4) This sample must be representative or 

5) A histogram of the residuals must be & 

d. State the decision on the Null Hypothesis and the conclusion for this test.

1. In 2002, there were 23 states in which more than 50% of high school graduates took the SAT test. The following printout gives the regression analysis for predicting SAT Math from SAT Verbal.

The regression equation is

Predictor Coef St Dev t ratio P
Constant 185.77 71.45 2.60 0.017
Verbal 0.6419 0.1420 4.52 0.000
s = 7.457 R-sq = 49.3% R-sq(adj) = 46.9%

a. What is the equation of the least-squares regression line for predicting Math SAT score from Verbal SAT score?

b. Write the hypotheses to perform a linear regression t-test.

c. Verify the assumptions / conditions necessary to perform this test. Fill in the blanks with the correct term.

1) The data must be

2) The scatterplot must be roughly

and free of any

3) The residuals plot must show

4) This sample must be representative or

5) A histogram of the residuals must be

d. State the decision on the Null Hypothesis and the conclusion for this test.

Added by Devin B.

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