Question: Medicine and Clinical Studies An abdominal aortic aneurysm (AAA) is often signaled by inflammation. A cardiovascular magnetic resonance study was conducted to identify wall edema as a marker for inflammation. Independent random samples of AAA and normal patients were obtained, and the MR-STIR intensity values were recorded for each.12 Assume the underlying populations are normal with unequal variances.
a. Is there any evidence to suggest that the population mean intensity values are different for the two patient groups? Use a = 0.05.
b. Find bounds on the p value for this hypothesis test.