Shari wants to predict freshman GPA scores fromhigh school GPA. For a random sam

Question

Shari wants to predict freshman GPA scores fromhigh school GPA. For a random sample of 225 students, she reportsthe following information

r = 0.40
SD of FGPA = 0.20
SD of high school GPA = 0.40
S(e) of the slope = 0.04

What is the best answer? Choose one answer. a. 16% of thevariance in high school GPA is explained by freshman GPA andgetting good grades in high school leads to getting good grades incollege. b. High school GPAis a significant predictor of freshman GPA and for each unit ofincrease on high school GPA freshman GPA increases 0.20units. c. We should failto reject the null hypothesis that the coefficient of correlationbetween high school and freshman GPA is zero and if we compute a95% confidence interval for the slope it will includezero. d. High school GPAis a significant predictor of freshman GPA and for each unit ofincrease in high school GPA, freshman GPA increases by 0.80units. Shari wants to predict freshman GPA scores fromhigh school GPA. For a random sample of 225 students, she reportsthe following information

r = 0.40
SD of FGPA = 0.20
SD of high school GPA = 0.40
S(e) of the slope = 0.04

What is the best answer? Choose one answer. a. 16% of thevariance in high school GPA is explained by freshman GPA andgetting good grades in high school leads to getting good grades incollege. b. High school GPAis a significant predictor of freshman GPA and for each unit ofincrease on high school GPA freshman GPA increases 0.20units. c. We should failto reject the null hypothesis that the coefficient of correlationbetween high school and freshman GPA is zero and if we compute a95% confidence interval for the slope it will includezero. d. High school GPAis a significant predictor of freshman GPA and for each unit ofincrease in high school GPA, freshman GPA increases by 0.80units. Choose one answer. a. 16% of thevariance in high school GPA is explained by freshman GPA andgetting good grades in high school leads to getting good grades incollege. b. High school GPAis a significant predictor of freshman GPA and for each unit ofincrease on high school GPA freshman GPA increases 0.20units. c. We should failto reject the null hypothesis that the coefficient of correlationbetween high school and freshman GPA is zero and if we compute a95% confidence interval for the slope it will includezero. d. High school GPAis a significant predictor of freshman GPA and for each unit ofincrease in high school GPA, freshman GPA increases by 0.80units.

Explanation / Answer

Answer: c.We should fail to reject the null hypothesis that the coefficientof correlation between high school and freshman GPA is zero and ifwe compute a 95% confidence interval for the slope it will includezero.

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