Question: Construct a 95% prediction interval for the predicted total cholesterol of a 42-year-old female. Approach Determine the predicted total cholesterol at (x^{*}=42) and use Formula

Construct a 95\% prediction interval for the predicted total cholesterol of a 42-year-old female.

Approach Determine the predicted total cholesterol at \(x^{*}=42\) and use Formula (2), since our estimate is for a particular 42-year-old female.

Formula 2

Lower bound: -ta/2. Se1 + Upper bound: la/2 Se 1 n 1

Lower bound: -ta/2. Se1 + Upper bound: la/2 Se 1 n 1 + (x*x) (x - 72 (x* - x) 1+ + n (x-x) (2)

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