Researchers conducted a study to determine whether magnets are effective in treating back Treatment Sham pain. The results are shown in the table for the treatment (with magnets) group and the H1 12 sham (or placebo) group. The results are a measure of reduction in back pain. Assume that the two samples are independent simple random samples selected from normally distributed n 13 13 populations, and do not assume that the population standard deviations are equal. Complete X 0.52 0.45 parts (a) and (b) below. S 0.54 1.21 1 1 H1-H2 1 1 1 . H1+ H2 The test statistic, t, is (Round to two decimal places as needed.) Get more help - Clear all Check answer Previous Next >