4 Marks: 1 In a study I wanted to predict performance ingeometry from the years

Question

4 Marks: 1 In a study I wanted to predict performance ingeometry from the years of mother's education, attitude towardmath, and GPA. I found the F value to be 122 and R square to be0.33.

What is the best answer.
Choose one answer. a. We should failto reject the null and conclude that 67% of the variance ingeometry scores cannot be explained by GPA. b. We should rejectthe null and conclude that mother's edication, good scores inalgebra, and a positive attitude toward math leads to high scoresin geometry and explain 33% of the variance. c. We should rejectthe null and conclude that mother's education, attitude towardmath, and GPA explain 33% of the variance in geometryscores. d. We reject thenull and conclude that mother's education, GPA, and attitude towardmath are all significant predictors of performance in geometry andexplain 33% of the variance. Marks: 1 In a study I wanted to predict performance ingeometry from the years of mother's education, attitude towardmath, and GPA. I found the F value to be 122 and R square to be0.33.

What is the best answer.
Choose one answer. a. We should failto reject the null and conclude that 67% of the variance ingeometry scores cannot be explained by GPA. b. We should rejectthe null and conclude that mother's edication, good scores inalgebra, and a positive attitude toward math leads to high scoresin geometry and explain 33% of the variance. c. We should rejectthe null and conclude that mother's education, attitude towardmath, and GPA explain 33% of the variance in geometryscores. d. We reject thenull and conclude that mother's education, GPA, and attitude towardmath are all significant predictors of performance in geometry andexplain 33% of the variance. In a study I wanted to predict performance ingeometry from the years of mother's education, attitude towardmath, and GPA. I found the F value to be 122 and R square to be0.33.

What is the best answer.
Choose one answer. a. We should failto reject the null and conclude that 67% of the variance ingeometry scores cannot be explained by GPA. b. We should rejectthe null and conclude that mother's edication, good scores inalgebra, and a positive attitude toward math leads to high scoresin geometry and explain 33% of the variance. c. We should rejectthe null and conclude that mother's education, attitude towardmath, and GPA explain 33% of the variance in geometryscores. d. We reject thenull and conclude that mother's education, GPA, and attitude towardmath are all significant predictors of performance in geometry andexplain 33% of the variance. Choose one answer. a. We should failto reject the null and conclude that 67% of the variance ingeometry scores cannot be explained by GPA. b. We should rejectthe null and conclude that mother's edication, good scores inalgebra, and a positive attitude toward math leads to high scoresin geometry and explain 33% of the variance. c. We should rejectthe null and conclude that mother's education, attitude towardmath, and GPA explain 33% of the variance in geometryscores. d. We reject thenull and conclude that mother's education, GPA, and attitude towardmath are all significant predictors of performance in geometry andexplain 33% of the variance.

Explanation / Answer

An F score of 122 is incredibly large. Thus, for anyreasonable degree of freedom combination, we will reject the nullhypothesis. In addition, since R^2 = .33, 33% of the variance in geometryscores are explained by the variance in the inputs. Thus, the answer is C. A is wrong because R^2 incorporates all of the input variables. B is wrong because we don't whether these factors lead to high orlow scores in geometry. D is wrong because we don't know if the factors aresignificant.

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