Question: Consider the baseball regression model from Section 2.8 and assume that wins and ERA are jointly normally distributed. a. Find the correlation between wins and

Consider the baseball regression model from Section 2.8 and assume that wins and ERA are jointly normally distributed.

a. Find the correlation between wins and team ERA.

b. Test the hypothesis that $\boldsymbol{ho}=0$.

c. Test the hypothesis that $\boldsymbol{ho}=0.5$.

d. Find a $95 %$ CI for $ho$.

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