Author Question: If the correlation between X1 and Y is r = 0.40 and the correlation between X2 and Y is r = 0.30, ... (Read 54 times)

karlynnae · **on:** Jun 20, 2018

If the correlation between X1 and Y is r = 0.40 and the correlation between X2 and Y is r = 0.30, then a multiple regression equation using both X1 and X2 as predictors will produce R2 = 0.25.

Indicate whether the statement is true or false

Question 2

A researcher administers a treatment to a sample from a population with a mean of m = 60. If the treatment is expected to increase scores and a one-tailed test is used to evaluate the treatment effect, then the null hypothesis states that m 60.

Indicate whether the statement is true or false