Which of the following is expected if the null hypothesis is true for an analysis of variance?

A set of n = 60 pairs of scores (X and Yvalues) produces a regression equation of Ŷ = 7X + 16. Find the predicted Y value for an X score of -2.

The results of an independent-measures research study are reported as “t(20) = 2.12, p < .05, two tails." For this study, what t values formed the boundaries for the critical region?

An ANOVA test rejects the null hypothesis, proving that the results are significant. It is determined that eta squared=.35. Interpret this value.

A sample of n = 16 scores produces a one sample t-test statistic of t = 2.00.  If the sample is used to measure effect size with r2, what value will be obtained for r2?

An analysis of variances produces dfbetween = 3 and dfwithin = 24.  If each treatment has the same number of participants, then how many participants are in each treatment?

A population has a mean of µ = 30.  If 3 points are added to each score, what is the mean for the new distribution?

An independent-measures study produces sample means of M1 = 35 and M2 = 31 and a pooled variance of 25.  For this study, Cohen’s d = ____.

The range of the correlation coefficient is

In a related-samples t-test, what concept does the numerator of the t-ratio measure?