Question: Consider the data in Problem 2.12 and assume that steam usage and average temperature are jointly normally distributed. a. Find the correlation between steam usage

Consider the data in Problem 2.12 and assume that steam usage and average temperature are jointly normally distributed.

a. Find the correlation between steam usage and monthly average ambient temperature.

b. Test the hypothesis that ρ = 0.

c. Test the hypothesis that ρ = 0.5.

d. Find a 99% CI for ρ .

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