
Ultimate access to all questions.
Explanation:
To determine which hypotheses can be rejected at a 5% significance level, we need to examine the p-values associated with each coefficient test:
Hypothesis I (): The intercept coefficient has a p-value of 0.0000, which is less than 0.05. Therefore, we can reject the null hypothesis that .
Hypothesis II (): The coefficient has a p-value of 0.0513, which is greater than 0.05. Therefore, we cannot reject the null hypothesis that .
Hypothesis III (): The coefficient has a p-value of 0.0000, which is less than 0.05. Therefore, we can reject the null hypothesis that .
Hypothesis IV (): This is a joint hypothesis test. The F-statistic has a p-value of 0.0000, which is less than 0.05. Therefore, we can reject the joint null hypothesis that both and equal zero.
Summary of rejections:
Therefore, hypotheses I, III, and IV can be rejected, which corresponds to Option D.
No comments yet.