How would use a Tukey test for an ANOVA that analyzes MAAP ELA scores across students in the third through sixth grades. For 3rd grade, the count is 10, sum is 734, and average is 73.4. For 4th grade the count is 8, sum is 544, and average is 68. For 5th grade, the count is 17, the sum is 937, and the average is 55.12. For 6th grade, the count is 22, sum is 1153, and average is 52.41. The Df between groups is 3, within groups is 53, and the total was 53. F was 5.88676984, P-value was 0.00151794, and f-crit was 2.78 between groups