Author Question: If the Pearson correlation between X and Y is r = 0.60, then the regression equation predicts 36 of ... (Read 75 times)

karateprodigy · **on:** Jun 20, 2018

If the Pearson correlation between X and Y is r = 0.60, then the regression equation predicts 36 of the variance in the Y scores.

Indicate whether the statement is true or false

Question 2

Which of the following will increase the power of a statistical test?

A) Change from .05 to .01
B) Change from a one-tailed test to a two-tailed test
C) Change the sample size from n = 25 to n = 100
D) None of the other three options will increase the power.