Answer the following questions 'lWhen is it appropriate to use the onesample 2 test? 2. What does the z in 2 test represent? 1it'llhat similarity does it have to a simple 2 or standard score? 3. For the following situations, write out in words a research hypothesis: a. Bob wants to know whetherthe weight loss for his group on the chocolate-only diet is representative ofweight loss in a large population of middleaged men. b. The health department is charged with nding out whether the rate ofu per thousand citizens during this past u season is comparable to the average rate during the past 50 seasons. c. Blair is almost sure that his monthly.r costs forthe past year are not representative of his average monthly costs over the past 20 years