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5. Consider the following estimated equation that is used to study the effect of skipping class on college GPA: colGPA= 1.39+ .412 hsGPA+ .015 ACT- .083 skipped (.011) (33) (.094) (.026) n= 141, R= 234 (1) Using the standard normal approximation, find the 95% confidence interval for GPA (2) Based on the 95% confidence interval you obtained, can you reject the hypothesis H: PisGPA 0.4against the two-sided alternative at the 5% level? (3) Can you reject the hypothesis H BGPA 0.1 at the 5% level? (4) Can you reject the hypothesis Ho PGPA 0.8 at the 5% level?

5. Consider the following estimated equation that is used to study the effect of skipping class on college GPA: colGPA= 1.39+ .412 hsGPA+ .015 ACT- .083 skipped (.011) (33) (.094) (.026) n= 141, R= 234 (1) Using the standard normal approximation, find the 95% confidence interval for GPA (2) Based on the 95% confidence interval you obtained, can you reject the hypothesis H: PisGPA 0.4against the two-sided alternative at the 5% level? (3) Can you reject the hypothesis H BGPA 0.1 at the 5% level? (4) Can you reject the hypothesis Ho PGPA 0.8 at the 5% level?

Calculus For The Life Sciences
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter1: Functions
Section1.2: The Least Square Line
Problem 8E
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5. Consider the following estimated equation that is used to study the effect of skipping class on college GPA: colGPA= 1.39+ .412 hsGPA+ .015 ACT- .083 skipped (.011) (33) (.094) (.026) n= 141, R= 234 (1) Using the standard normal approximation, find the 95% confidence interval for GPA (2) Based on the 95% confidence interval you obtained, can you reject the hypothesis H: PisGPA 0.4against the two-sided alternative at the 5% level? (3) Can you reject the hypothesis H BGPA 0.1 at the 5% level? (4) Can you reject the hypothesis Ho PGPA 0.8 at the 5% level?
Transcribed Image Text:5. Consider the following estimated equation that is used to study the effect of skipping class on college GPA: colGPA= 1.39+ .412 hsGPA+ .015 ACT- .083 skipped (.011) (33) (.094) (.026) n= 141, R= 234 (1) Using the standard normal approximation, find the 95% confidence interval for GPA (2) Based on the 95% confidence interval you obtained, can you reject the hypothesis H: PisGPA 0.4against the two-sided alternative at the 5% level? (3) Can you reject the hypothesis H BGPA 0.1 at the 5% level? (4) Can you reject the hypothesis Ho PGPA 0.8 at the 5% level?
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