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One item on a questionnaire asks students how many times in a typical week they eat at a fast-food restaurant.  The responses for a sample of n = 10 students are summarized in the frequency distribution. What is the best measure of central tendency for these data?X                             f5 or more          24                             33                             22                             11                             10                             1

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?

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?

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

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

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?

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.

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

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

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 = ____.