A graduate student is conducting a research study to determine if 3 different brands of pre-workout supplements affect the rate of muscle growth. In each treatment, the researcher uses a sample of n = 10 in each treatment. Given, SSBG = 54 and SSWG = 180, calculate the F-ratio.

Kendall got an 80 on her Psychology exam. The mean was 85 and the standard deviation was 2. Tyler got a 75 on his Economics exam. The mean was 80 and the standard deviation was 5. Statistically who did better when the scores are z-scored?

On an exam with a mean of 70, you have a score of 65.  Which of the following values for the standard deviation would give you the highest position within the class, or the best score in class relative to other student’s scores?

The calculations for a one-sample t-test examines _____________ .

One sample has n = 5 scores and the second has n = 10 scores.  If the pooled variance for the two sample is 30, then what is the value of the estimated standard error for the sample mean difference?

The classrooms in the Psychology department are numbered from 100 to 108.  A professor records the number of classes held in each room during the fall semester.  If these values are presented in a frequency distribution graph, what kind of graph would be appropriate?

A researcher reports t(22) = 5.30, p < .01 for an independent-measures experiment.  How many individuals participated in the entire experiment?

The calculations for a one-sample t-test examines _____________ .

Which of the following describes a typical distribution of F-ratios?

Statistical methods that organize, summarize, or simplify data are called ____.