GRE Scores The quantitative reasoning scores on the Graduate Record Examination (GRE...

GRE Scores The quantitative reasoning scores on the Graduate Record Examination (GRE)2 were recorded for students admitted to three different graduate programs at a local university.

a. Do these data provide sufficient evidence to indicate a difference in the mean GRE scores for applicants admitted to the three programs?

b. Find a 95% confidence interval for the difference in mean GRE scores for Life Sciences and Physical Sciences.

c. If you find a significant difference in the average GRE scores for the three programs, use Tukey’s method for paired comparisons to determine which means differ significantly from the others. Use α = .05.