# Question

a. A repeated-measures study with a sample of n = 9 participants produces a mean difference of MD = 3 with a standard deviation of σ = 6.

Use a two-tailed hypothesis test with a = .05 to determine whether it is likely that this sample came from a population with mD = 0.

b. Now assume that the sample mean difference is MD = 12, and once again visualize the sample distribution. Use a two-tailed hypothesis test with a = .05 to determine whether it is likely that this sample came from a population with mD = 0.

c. Explain how the size of the sample mean difference influences the likelihood of finding a significant mean difference.

Use a two-tailed hypothesis test with a = .05 to determine whether it is likely that this sample came from a population with mD = 0.

b. Now assume that the sample mean difference is MD = 12, and once again visualize the sample distribution. Use a two-tailed hypothesis test with a = .05 to determine whether it is likely that this sample came from a population with mD = 0.

c. Explain how the size of the sample mean difference influences the likelihood of finding a significant mean difference.

## Answer to relevant Questions

A sample of difference scores from a repeatedmeasures experiment has a mean of MD = 4 with a standard deviation of σ = 6. a. If n = 4, is this sample sufficient to reject the null hypothesis using a two-tailed test with a = ...The following values are from an independent-measures study comparing three treatment conditions. a. Compute the variance for each sample. b. Compute MSwithin, which would be the denominator of the F-ratio for an ANOVA. ...The following data were obtained from an independentmeasures research study comparing three treatment conditions. Use an ANOVA with a = .05 to determine whether there are any significant mean differences among the ...Posttests are done after an ANOVA. a. What is the purpose of posttests? b. Explain why you do not need posttests if the analysis is comparing only two treatments. c. Explain why you do not need posttests if the decision from ...The following summary table presents the results from a repeated-measures ANOVA comparing three treatment conditions with a sample of n = 11 subjects. Fill in the missing values in the table.Post your question

0