A set of n = 25 pairs of scores (X and Y values) has a Pearson ...

[FButt]

A set of n = 25 pairs of scores (X and Y values) has a Pearson correlation of r = 0.80. How much of the variance for the Y scores is predicted by the relationship with X?
 
  A) 0.36 or 36
  B) 0.20 or 20
  C) 0.80 or 80
  D) 0.64 or 64

Question 2

Which of the following is directly addressed by the null hypothesis?
 
  A) The population before treatment
  B) The population after treatment
  C) The sample before treatment
  D) The sample after treatment

[Ddddd]

Answer to Question 1

D

Answer to Question 2

B

[FButt]

Thanks for the timely response, appreciate it

[chereeb]

YES! Correct, THANKS for helping me on my review