What is the value of the estimated standard error for the following set of D-scores?Scores: 2, 2, 10, 2
A repeated-measures study comparing two treatments with a sa…
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?
Which of the following is not an appropriate variable for Pe…
Which of the following is not an appropriate variable for Pearson’s correlation?
A researcher selects a sample of 100 people to investigate t…
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 sample has a mean of M = 40. If 10 points are added to on…
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 variance is used to evaluate the mean differe…
An analysis of variance is used to evaluate the mean differences for a research study comparing four treatments with a separate sample of n = 8 in each treatment. If the data produce an F-ratio of F = 5.50, then which of the following is the correct statistical decision?
A researcher performs a regular two-tailed test using α = .0…
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.
What is the value of the estimated standard error for the fo…
What is the value of the estimated standard error for the following set of D-scores?Scores: 2, 2, 10, 2
For an analysis of variance comparing four treatments, MSbet…
For an analysis of variance comparing four treatments, MSbetween = 12. What is the value of SSbetween?
An analysis of variance produces SSbetween = 30, SSwithin =…
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?