Explanation
This question is about hypothesis testing in regression analysis at a 5% significance level. Without the specific regression results (t-statistics, p-values, or F-statistics), we cannot definitively determine which hypotheses can be rejected. However, based on typical FRM exam patterns:
- H0:B0=0 (Intercept test): Usually tested with t-statistic
- H0:B1=0 (Coefficient 1 test): Usually tested with t-statistic
- H0:B2=0 (Coefficient 2 test): Usually tested with t-statistic
- H0:B1=B2=0 (Joint test): Tested with F-statistic
Option D (I, III, and IV) suggests that the intercept, coefficient 2, and the joint test of both coefficients are statistically significant at the 5% level, while coefficient 1 is not significant.
Key concepts:
- Individual coefficient tests use t-statistics
- Joint hypothesis tests use F-statistics
- At 5% significance level, p-value < 0.05 means reject null hypothesis
- Without specific test statistics, we rely on the pattern that typically only some coefficients are significant in regression analysis