A doctor studies pain levels in 88 patients to see if their chronic arthritis pain has been changed by a holistic treatment. The pain level in other arthritis patients is on average 4.5 out of 10, with a population standard deviation of 2. These 8 patients have pain levels of 2, 1, 6, 4, 8, 6, 4, 2. Use a= .05
A. List the null and alternate hypotheses.
B. Calculate the appropriate statistic.
C. Calculate the effect size for the impact of this treatment on pain.
D. Do your reject or fail to reject the null? Why?
E. Provide a conclusion.