Question

partial credit, 11.1.19-T In 1950​, an organization surveyed 1100 adults and​ asked, "Are you a total abstainer​ from, or do you on occasion​ consume, alcoholic​ beverages?" Of the 1100 adults​ surveyed, 429 indicated that they were total abstainers. In a recent​ survey, the same question was asked of 1100 adults and 374 indicated that they were total abstainers. Complete parts​ (a) and​ (b) below. ​(a) Determine the sample proportion for each sample. The proportions of the adults who took the 1950 survey and the recent survey who were total abstainers are . 39 and . 34​, respectively. ​(Round to three decimal places as​ needed.) ​(b) Has the proportion of adults who totally abstain from alcohol​ changed? Use the alphaequals0.10 level of significance. First verify the model requirements. Select all that apply. A. n 1 ModifyingAbove p with caret 1 left parenthesis 1 minus ModifyingAbove p with caret 1 right parenthesis greater than or equals 10 and n 2 ModifyingAbove p with caret 2 left parenthesis 1 minus ModifyingAbove p with caret 2 right parenthesis greater than or equals 10 This is the correct answer.B. The data come from a population that is normally distributed. Your answer is not correct.C. The sample size is less than​ 5% of the population size for each sample. This is the correct answer.D. The samples are dependent. E. The sample size is more than​ 5% of the population size for each sample. F. The samples are independent. Your answer is correct. Identify the null and alternative hypotheses for this test. Let p 1 represent the population proportion of 1950 adults who were total abstainers and p 2 represent the population proportion of recent adults who were total abstainers. Determine the null and alternative hypotheses. Upper H 0​: p 1 equals p 2 Upper H 1​: p 1 not equals p 2 Find the test statistic for this hypothesis test= ​(Round to two decimal places as​ needed.)

Answer 1