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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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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