tory Bookmarks Window Help utpb.instructure.com Search Results | Course Hero Homework Help - Q&A from Online Tut Assume you're interested in the mental health effects of the "caregivers" caring for the elderly with Alzheimer's disease Specifically, you expect that such caregivers will suffer from significantly elevated levels of depression as compared to the general population. To measure depression in care-givers, you use a standard test of depression (STD) on which scores range from zero to 40, with high scores indicating higher levels of clinical depression. The mean in the general (normal) population of on this test is u = 20. You get permission from ten caregivers who have worked in a local assisted living facility for Alzheimer's patients for over two years to participate in your study. They are administered the STD and their scores are below. 18, 33, 32, 22, 31, 29, 21, 26, 17, 25 Set your alpha level at a = .01. Complete steps 3 and 4 of the hypothesis testing procedure. Then summarize the results of the hypothesis testing procedure by putting your results in journal form. Ignore the minus sign if your calculated z or t is negative [Note, if your calculated z or t is not identical to one of the values below, but within plus or minus 0.2 of an answer below, assume it's a rounding error and select the answer that is closest to your calculated value.] t (9) = 2.95, p <.01 z p t> .01