Complete the following:
Q1: A researcher conducts an independent-measures study comparing two treatments and reports the t statistics as t(25)= 2.071. How many individuals participated in the entire study? use a two tailed test with o=.05 and the distributions tool below to determine if there is significant difference between the two treatments.
Reject the null hypothesis; there is no significant difference
Fail to reject the null hypotheses; there is no significant difference.
Reject the null hypothesis, there is a significant difference
Fail to reject the null hypothesis; there is a significant difference.
Q2: Compute r2 to measure the percentage of variance accounted for by the treatment effect.
14.6%
7.1%
7.6%
13.6%