For an independent-measures experiment comparing two treatment conditions with a sample of 10 in each treatment, which of the following identifies the correct df for the F-ratio?

If an analysis of variance is used for the following data, what would be the effect of changing the value of SS2 to 100?Sample DataM1 = 15   M2 = 25 SS1 = 90   SS2 = 70

If the mean and variance are computed for each sample in an independent-measures two-factor experiment, then which of the following types of sample data will tend to produce large F-ratios for the two-factor ANOVA?

An independent-measures research study uses two samples, each with n = 22, to compare two treatments. If the results are evaluated with a t statistic using a two-tailed test with α = .01, then what are the boundaries for the critical region?

A sample has a mean of M = 86.  If one new person is added to the sample, what effect will it have on the sample mean?

A sample of n = 20 scores is transformed into z-scores.  What is the mean for the set of 20 z-scores?

For an independent-measures experiment comparing two treatment conditions with a sample of 10 in each treatment, which of the following identifies the correct df for the F-ratio?

Which of the following sets of sample data would produce the smallest value for an independent-measures t statistic?

Under what circumstances is a score that is 5 points above the mean considered a central value–meaning it is relatively close to the mean?

For a normal population with µ = 40 and σ = 10 which of the following samples is least likely to be obtained?