Question: For the following data, do the following:

??Calculate the correlation between X and Y.

??Interpret the sign of the correlation.

??Interpret the square of the correlation.

??Plot the least-squares line.

??Test for a linear relationship. What do the results indicate?

(1) b 1 5 0.

(2) r 5 0.

(3) An F test.

X Y

25 5

19 7

17 12

14 23

12 20

9 25

8 26

7 28

3 20