a) Obtain a 95% confidence interval for the mean muscle mass. Interpret your confidence interval.

b) Obtain a 95 percent prediction interval. Is the prediction interval relatively precise?

c) Determine the boundary values of the 95 percent confidence band for the regression line when Xh = 60. Is your confidence band wider at this point than the confidence interval in part a? Should it be?

I don't know if this helps, but with the data, I found that the regression line is equal to 78.10499 - 0.04138x.

In addition the showing me how to obtain these answers, could someone please explain to me the difference between a confidence interval and a prediction interval? I am not sure the difference in the question between part a and b

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