Psychology Statistic Homework

Where needed, round answers to 2 decimal places.

Upon submitting your answers, you will see step-by-step instructions on how to answer each problem so you can check your work.

A researcher studying genetic influences on learning compares the maze performance of four genetically different strains of mice, using eight mice per strain. Performance for the four strains were as follows:

Using the .01 significance level, is there an overall difference in maze performance among the four strains? (a) Use the steps of hypothesis testing; (b) sketch the distributions involved; (c) figure the effect size for the study; (d) Test the significance of planned contrasts using the overall .05 level (with a Bonferroni correction for testing each of the five contrasts) for strain J versus strain M, (e) for strain J versus strain Q, (f) for strain J versus strain W, (g) for strain Q versus strain M, and (h) for strain Q versus strain W.