Question: Consider the regression model fit to the nisin extraction data in Exercise 12-14. (a) Calculate 95% confidence intervals on each regression coefficient. (b) Calculate a

Consider the regression model fit to the nisin extraction data in Exercise 12-14.

(a) Calculate 95% confidence intervals on each regression coefficient.

(b) Calculate a 95% confidence interval on mean nisin extraction when and

(c) Calculate a prediction interval on nisin extraction for the same values of the regressors used in the previous part.

(d) Comment on the effect of a small sample size to the widths of these intervals.

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