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With alpha = .05, what is the critical t value for a one-tailed, one sample t-test test with n = 15?

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?

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?

Which of the following is NOT a step for using a Unit Normal Table?

The results of a two-factor analysis of variance produce df = 2, 36 for the F-ratio for factor A and df = 2, 36 for the F-ratio for factor B.  How many participants are in each of the treatment conditions?

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

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?

A hypothesis test with a sample of n = 25 participants produces a one sample t-test statistic of t = +2.53.  Assuming a one-tailed test with the critical region in the right-hand tail, what is the correct decision?

If other factors are held constant, what is the effect of increasing the sample variance?