5. Consider the following estimated equation that is used to study the effect of skipping class on colege GPA: COLGPA- 1.39+412 HSGPA+015 ACT - 083 skipped (011) (.026) (33) (.094) n= 141, R2= 234 (1) Using the standard normal approximation, find the 95% confidence interval for puA (2) Based on the 95% confidence interval you obtained, can you reject the hypothesis H BOPA = 0.4 against the two-sided alternative at the 5% level? (3) Can you reject the hypothesis H: PPA = 0.1 at the 5% level? (4) Can you reject the hypothesis H,: P 0.8 at the 5% level?

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 colege GPA:
COLGPA- 1.39+412 HSGPA+015 ACT - 083 skipped
(011)
(.026)
(33)
(.094)
n= 141, R2= 234
(1) Using the standard normal approximation, find the 95% confidence
interval for puA
(2) Based on the 95% confidence interval you obtained, can you reject the
hypothesis H BOPA = 0.4 against the two-sided alternative at the 5% level?
(3) Can you reject the hypothesis H: PPA = 0.1 at the 5% level?
(4) Can you reject the hypothesis H,: P 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 colege GPA: COLGPA- 1.39+412 HSGPA+015 ACT - 083 skipped (011) (.026) (33) (.094) n= 141, R2= 234 (1) Using the standard normal approximation, find the 95% confidence interval for puA (2) Based on the 95% confidence interval you obtained, can you reject the hypothesis H BOPA = 0.4 against the two-sided alternative at the 5% level? (3) Can you reject the hypothesis H: PPA = 0.1 at the 5% level? (4) Can you reject the hypothesis H,: P 0.8 at the 5% level?
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