Question: Using the regression from Exercise 11-2, (a) Find a 95% confidence interval for the slope. (b) Find a 95% confidence interval for the mean weight

Using the regression from Exercise 11-2,

(a) Find a 95% confidence interval for the slope.

(b) Find a 95% confidence interval for the mean weight for a man 25 years old.

(c) Find a 95% prediction interval for the weight of a 25 year old man.

(d) Which interval is wider, the confidence interval or the prediction interval? Explain briefly.

(e) Without using age, find a 95% confidence interval for the mean weight of all men. Compare this to the interval in part (b).

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