Consider the data and simple linear regression in Exercise 6-4. (a) Find the mean turbidity given…

Consider the data and simple linear regression in Exercise 6-4.

(a) Find the mean turbidity given that the temperature is 25.0 degrees.

(b) Compute a 95% CI on this mean response.

(c) Compute a 95% PI on a future observation when temperature is equal to 25.0 degrees.

(d) What do you notice about the relative size of these two intervals? Which is wider and why?

 

 

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