An education researcher is comparing four different algebra curricula. Eighth grade students are randomly assigned to one one of the four groups. Their state achievement test scores are compared at the end of the year. Use the appropriate statistical procedure to determine whether the curricula differ with respect to math achievement. An alpha criterion of .05 should be used for the test. n mean std curriculum 1 50 170.5 14.5 curriculum 2 50 168.0 12.8 curriculum 3 50 167.6 17.7 curriculum 4 50 172.8 16.8