MUST SHOW ALL ALL WORK WITH FORMULAS

In a study of the effects of two anti-anxiety drugs, subjects are asked to rate their anxiety levels under a stressful condition in which they had to perform a complex task. Each of the subjects in the study was given both drugs. Half were given drug A first, and the other half were given drug B first. Their scores under the influence of the two drugs are shown below. Normal distributions CANNOT be assumed. Use a two-tailed test at the .05 level of significance. (8 points) Drug A Drug B 15 20 13 17 11 10 12 18 15 13 14 11 11 20 15 22 11 22 16 24 If the distributions were normal what other statistical tests could we use to test for a significant difference between the two groups? How would you expect them to compare with the test you just used and why? (2 points)