4. An oncologist has tested the efficacy of two treatments on treating brain cancer. He exposed rabbits to one of three treatments for three months: placebo, Neurohib, and Mitostop. He then measured the diameter in mm on twelve brain tumors. The results are below. Placebo 7 8 10 11 6 9 12 Neurohib 4 Mitostop 2 12452435 5785598 11 8 a) What statistical test should be used to analyze this data? Justify your answer. b) Does the data fit the assumptions of the test? If not, which test should you use? c) What are the null and alternative hypotheses? d) Report a. e) Run the test in SPSS and include the values for the test statistic, the degrees of freedom, and the P-value below. f) What decision do you come to following the test? Justify your answer. g) Given the decision, what conclusions do you reach? h) Run the appropriate follow up test(s). What conclusions do you reach? i) Graph the results