Solution: Consider the regression model fit to the nisin
Chapter 12, Problem 62E(choose chapter or problem)
Consider the regression model fit to the nisin extraction data in Exercise 12-18.
(a) Calculate 95% confidence intervals on each regression coefficient.
(b) Calculate a 95% confidence interval on mean nisin extraction when \(x_1=15.5\) and \(x_2=16\).
(c) Calculate a prediction interval on nisin extraction for the same values of the regressors used in part (b).
(d) Comment on the effect of a small sample size to the widths of these intervals.
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