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 ?

Which statement is true about the t-distribution?

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 ?