For any distribution, what is the z-score corresponding to the mean?

A set of n = 10 pairs of scores has ΣX = 20, ΣY = 30, and ΣXY = 74.  What is the value of SP for these data?

An independent-measures research study uses two samples, each with n = 12 participants.  If the data produce a t statistic of t = 2.08, then which of the following is the correct decision for a two-tailed hypothesis test?

What is the critical value for a repeated measures ANOVA with N=77, 6 levels for factor A, dfWG = 121, and an alpha level of 0.05?

For a sample with M = 80, a score of X = 88 corresponds to z = 2.00.  What is the sample standard deviation?

A researcher uses a repeated-measures ANOVA to test for mean differences among three treatment conditions using a sample of 10 participants.  What are the df values for the F-ratio from this analysis?

What is the primary reason someone would use a t-statistic instead of a z-test for a hypothesis test?

For a related samples t-test, the null hypothesis states _____.

You have a score of X = 65 on an exam.  Which set of parameters would give you the best grade on the exam?

A set of n = 35 pairs of scores (X and Yvalues) produces a regression equation of Ŷ = 12X + 14. Find the predicted Y value for an X score of 2.