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An analysis of variances produces dftotal = 29 and dfwithin = 27.  For this analysis, how many treatment conditions are being compared?

A repeated-measures study comparing two treatments with a sample of n = 4 participants produces a mean of M = 18 with SS = 24 for the scores in the first treatment, a mean of M = 14 with SS = 18 for the scores in the second treatment, and a mean of M = 4 with SS = 12 for the difference scores.  What is the estimated standard error for the sample mean difference?

One sample has n = 4 scores and M = 10.  A second sample has n = 6 scores and M = 5.  If the two samples are combined, then what is the mean for the combined sample?

A sample has a mean of M = 40.  If 10 points are added to one of the scores, what is the new value for the sample mean?

A repeated-measures study comparing two treatments with a sample of n = 4 participants produces a mean of M = 18 with SS = 24 for the scores in the first treatment, a mean of M = 14 with SS = 18 for the scores in the second treatment, and a mean of M = 4 with SS = 12 for the difference scores.  What is the estimated standard error for the sample mean difference?

The following table shows the results of a repeated-measures ANOVA.  Based on this table, what is the value for η2, the percentage of variance accounted for by the treatments?Source             SS      df      MS      Between        22        2      11      F = 5.50Within             58      21           Bet. Sub.       0        7     Error            28      14       2Total                  80      23

An analysis of variance produces SSbetween = 30, SSwithin = 60, and an F-ratio with df = 2, 15.  For this analysis, what is the F-ratio?

A researcher selects a sample of 100 people to investigate the relationship between gender (male/female) and registering to vote.  The sample consists of 40 females, of whom 30 are registered voters, and 60 males, of whom 40 are registered voters.  If these data were used for a chi-square test for independence, what is the expected frequency for registered females?

A researcher performs a regular two-tailed test using α = .05 and rejects the null hypothesis. If the researcher used a directional (one-tailed) test with the same data, then what decision would be made? Hint: Think about how the critical region changes.

An analysis of variance produces SSbetween = 30, SSwithin = 60, and an F-ratio with df = 2, 15.  For this analysis, what is the F-ratio?