_1. Identify the relationship and which Hypothesis Testis appropriate for each scenario: a] b) d] s] h] 1') k] To test whether Internet use increases depression score, we measure the depression scores of a random sample of non-Internet-users. have them use the Internet for a specied time, then measure their depression scores again. In order to check the claim that the pregnancy length of women who smoke during pregnancy is shorter, on average, than the pregnancy length of women who do not smoke, a random sample of 35 pregnant women who smoke and a random sample of 35 pregnant women who do not smoke were chosen and their pregnancylengths were recorded. Researchers question whether there is a relationship between employment status [employed full- time, employed part-time. unemployed] and highest level of education attained (some high school. graduated high school, some college, graduated college]. A researcher wanted to study whether or not men and women differ in the amount of time they watch TV during a weekA random sa mpie of 400 adults was chosen [191 women and 209 men]. At the end of the week, each of the 400 subjects reported the total amount of time [in minutes) that he or she watched TV during that week. A researcher wanted to study whether or not men and women differ in the amount of time they watch TV during a week. A random sample of 50 married couples was chosen, which was split into a sample of 50 men and a sample of 50 women. At the end of the week, each of the 100 subjects reported the total amount of time [in minutes] that he or she watched TV during that week. We suspect that automobile insurance premiums [in dollars] may be steadily decreasing with the driver's driving experience [in years), so we choose a random sample of drivers who have similar automobile insurance coverage and collect data about their ages and insurance premiums. A college dean behaves that students with different majors may experience different levels of academic frustration. Random samples of size 35 each for Business. English, Mathematics, and Psychology majors are asked to rate their level of academic frustration on a scale of 1 [lowes t] to 20 [highest]. A study was done on the relationship between gender and piercing among high-school students. A sample of 1,000 students was chosen, then classied according to gender and according to whether or not they had any of their ears pierced. We want to explore the difference between salary (in dollars) and the number of years of job experience that an employee has. A Survey of random samples of 40 seniors. 40 juniors, 40 sophomores, and 40 freshmen ata college report the number of credits they are taking. We want to know if there is a relationship between the number of credits they are taking and year in school. A health researcher was interested in nding out whether the DASH diet can lower a dieters blood pressure. Researchers compared the blood pressure before going on the diet with the same subject's blood pressure after 12 weeks on the DASH diet
