Which of the following statements is true?
A. If the calculated value of F statistic is higher than the critical value, we reject the alternative hypothesis in favor of the null hypothesis.
B. The F statistic is always nonnegative as SSRr is never smaller than SSRur.
C. Degrees of freedom of a restricted model is always less than the degrees of freedom of an unrestricted model.
D. The F statistic is more flexible than the t statistic to test a hypothesis with a single restriction.
Answer: B
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