What is the value of ΣX2 for the following scores?  Scores: 1, 0, 2, 4

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

Two samples, each with n = 6 subjects, produce a pooled variance of 20.  Based on this information, what is the estimated standard error for the sample mean difference?

A distribution of scores has a mean of µ = 50.  One new score is added to the distribution and the new mean is found to be µ = 48.  From this result, you can conclude that the new score was ____.

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?

If an analysis of variance is used for the following data, what would be the effect of changing the value of M1 to 20?Sample DataM1 = 15    M2 = 25 SS1 = 90    SS2 = 70

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 researcher conducts a repeated-measures study to evaluate a treatment with a sample of n = 16 participants and obtains a t statistic of t = 1.94.  The treatment is expected to increase scores and the sample mean shows an increase. Which of the following is the correct decision for a hypothesis test using a = .05.

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?

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