Mathematics, 22.02.2020 03:53 clara384

Suppose we are making predictions of the dependent variable y for specific values of the independent variable x using a simple linear regression model holding the confidence level constant. Let Width (C. I) = the width of the confidence interval for the average value y for a given value of x, and Width (P. I) = the width of the prediction interval for a single value y for a given value of x.

Which of the following statements is true?

(A) Width (C. I) = 0.5 Width (P. I)
(B) Width (C. I) < Width (P. I)
(C) Width (C. I) > Width (P. I)
(D) Width (C. I) = Width (P. I)

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Suppose we are making predictions of the dependent variable y for specific values of the independent...