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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?

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?

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 = ____.

In N = 25 games last season, the college basketball team averaged µ = 76 points with a standard deviation of s = 6.  In their final game of the season, the team scored 89 points.  Compared to the last season average points, the number of points scored in the final game was ____.

The range of the correlation coefficient is

For a perfectly symmetrical distribution with µ = 30, what is the most probable value for the mode?

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