Question 1 : Find ?¯x¯ and ?¯y¯. (Leave your answer exact as a simplified fraction.)
Question 2: Find the fitted regression line ?̂ =?0+?1?y^=b0+b1x . (Leave all numbers exact as simplified fractions.)
Question 3: Estimate the model error variance ?2σ2 from the data. (Leave exact as a simplified fraction.)
Question 4: Find a 95% confidence interval for ?1β1. (Round to 2 decimal places.)
Question 5: Find a 95% confidence interval for ?0β0. (Round to 2 decimal places.)
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