The sum of the squared deviation scores is SS = 20 for a population of N = 5 scores.  What is the variance for this population?

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

A sample of n = 25 scores has a mean of M = 65 and an estimated standard error of 2 points. What is the sample variance?

How large a sample is needed for a correlation of r = .550 to be significant using a two-tailed test with a = .05?

The values in the following matrix are treatment means from a two-factor study. One of the means is missing. What value for the missing mean would most likely result in no main effect for factor A?     B1 B2 A1 9 13 A2 11 ?

An independent-measures study uses two samples, each with n = 10, to compare two treatment conditions.  What is the df value for the t statistic for this study?

What is indicated by a large value for the chi-square statistic?

The values in the following matrix are treatment means from a two-factor study. One of the means is missing. What value for the missing mean would most likely result in no interaction?     B1 B2 A1 20 14 A2 16 ?

A sample of 4 scores has a mean of 8. Three of the scores are 12, 6, and 8. What is the fourth score?

Which of the following sets of correlations is correctly ordered from the highest to the lowest degree of relationship?