In 1941​, 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 1941 survey and the recent survey who were total abstainers are . 39.39 and . 34.34​, respectively. ​(Round to three decimal places as​ needed.) ​(b) Has the proportion of adults who totally abstain from alcohol​ changed? Use the α=0.05 level of significance.   First verify the model requirements. Select all that apply.     A. The sample size is more than​ 5% of the population size for each sample.   B. The samples are dependent.   C. n1p11−p1≥10 and n2p21−p2≥10 Your answer is correct.   D. The data come from a population that is normally distributed.   E. The sample size is less than​ 5% of the population size for each sample. Your answer is correct.   F. The samples are independent. Your answer is correct. Identify the null and alternative hypotheses for this test. Let p1 represent the population proportion of 1941 adults who were total abstainers and p2 represent the population proportion of recent adults who were total abstainers.   Determine the null and alternative hypotheses.   H0​: p1 equals=   p2 H1​: p1 not equals≠   p2 Find the test statistic for this hypothesis test.   2.432.43 ​(Round to two decimal places as​ needed.) Determine the​ P-value for this hypothesis test.   0.0150.015 ​(Round to three decimal places as​ needed.) Interpret the​ P-value.   If the population proportions are ▼     one would expect a sample difference proportion ▼     the one observed in about nothing out of 100 repetitions of this experiment. ​(Round to the nearest integer as​ needed.)

2.) ProportionsOn April 15th, 1912, the R.M.S. Titanic sank into the North Atlantic Ocean, resulting in the loss of more than 1,500 passengers and crew. Below is a table which summarizes the total number of passengers and the number of survivors for the crew, first-, second-, and third-class. Find the proportion of survivors by type of service (crew, first, second, third). Test the hypothesis at the 95% confidence level that the proportion of first-class survivors is the same as .50. What do you calculate for the test-statistic? What is the critical statistic? What is the conclusion of your hypothesis test?               Class       Passengers       Survived               Crew            885                      212               First             325                      202              Second        285                      118              Third            706                      178                    Total            2201                     710

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, 374 indicated that they were total abstainers. In a recent survey, the same question was asked of 1100 adults and 330 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 respectively. (Round to three decimal places as needed.) 1559 and

The Total sample size is 200,if the relative of frequency of class (A) is 0.22 , Then , the frequency of class (A) equals: Select one: a. 50 b. 22 c. 60 d. 44