S-adenosyl methionine (SAM-e) is a naturally occurring compound in human cells that is thought to have an effect on depression symptoms. Suppose that a researcher is interested in testing SAM-e on patients who are struggling with cancer. She obtains a sample of n = 20 patients and asks each person to take the suggested dosage each day for 4 weeks. At the end of the 4-week period, each individual takes the Beck Depression Inventory (BDI), which is a 21-item, multiple-choice self-report inventory for measuring the severity of depression. The scores from the sample produced a mean of M = 24.4 with a standard deviation ofs = 6.02. In the general population of cancer patients, the standardized test is known to have a population mean of u = 27.2. Because there are no previous studies using SAM-e with this population, the researcher doesn't know how it will affect these patients; therefore, she uses a two-tailed single-sample t test to test the hypothesis. From the following, select the correct null and alternative hypotheses for this study: O Ho: PSAM-e = 27.2; Hs: PSAMe 27.2 O Ho: MSAMe 2 27.2; Hs: MSAMe> 27.2 O He: PSAM-e S 27.2; H: USAMe> 27.2 O He: PSAM-e 2 27.2; Hs: PSAMe < 27.2 Assume that the depression scores among patients taking SAM-e are normally distributed. You will first need to determine the degrees of freedom. There are v degrees of freedom. Use the t distribution table to find the critical region for a- 0.01. The t Distribution: Proportion in One Tail