In Study Suggestion 2 of Chapter 2, I suggested that you analyze a set of 20 observations on X and Y. The following results are from the suggested analysis (see Answers to Chapter 2):  = 4.95; Σx 2 =...

In Study Suggestion 2 of Chapter 2, I suggested that you analyze a set of 20 observations on X and Y. The following results are from the suggested analysis (see Answers to Chapter 2):
 = 4.95; Σx²
= 134.95; S_y._x
= 2.23800; Y₁(predicted score for the first person whose X = 2) = 3.30307; Y₂₀
(predicted score for the last person whose X = 4) = 4.79251. Use the preceding to calculate the following:

(a) The standard error of mean predicted scores (i.e., sµ') for X = 2 and for X = 4, and the 95% confidence interval for the mean predicted scores.

(b) The standard error of predicted Y₁
and Y_2o, and 95% prediction interval for the predicted scores.