Select one answer. Cheating: According to a report on academic cheating by ETS, the Educational Testing Service, college students majoring in Business and Engineering are more liker to cheat than \"pain\" students in other majors. For a statistics project, a community college student at Diablo Valley College [DVC) decides to investigate cheating in two popular majors at DVC: business and nursing. She convinces professors who teach business and nursing courses to distribute a short anonymous survey in their classes. The queson about cheating is one of many other questions about college life. From this data, the student plans to calculate a condence interval for the difference in two population proportions. Which is the most reasonable description of the two populations for her conclusion? A. 0 business and nursing students in the classes that were surveyed B. 0 business and nursing students at DVC C. O business and nursing students at community colleges I). 0 business and nursing students at community colleges the year of the study Question 2 Select one answer. In March 2015, the Public Policy Institute of California (PPIC) surveyed 7,525 likely voters living in California. In the survey, respondents were asked about global warming. PPIC results show that 47% of adults age 55 and older view global warming as a serious problem, and 65% of adults age 18 to 34 view global warming as a serious problem. PPIC researchers are interested in the difference in proportions of adults Jopoints age 55 and over and adults age 18 to 34. The standard error for the difference in proportions is 0.011. Which of the following is the margin of error for a 95% condence interval? A. O 0.011 B. O 0.013 C. O 0.021 I). O 0.028 Select one answer. In March 2015, the Public Policy Institute of California (PPIC) surveyed 7525 likely voters living in California. This is the 148th PPIC research poll, and is part of a survey series that \"Pain\" started in 1998. PPIC researchers nd that 3266 survey participants are registered Democrats and 2137 survey,r participants are registered Republicans. PPIC is interested in the difference in approval rate for the governor between registered Democrats and registered Republicans in lCalifornia. Participants were asked: \"Overall, do you approve or disapprove of the way the governor of California is handling his job?\" 2450 of the registered Democrats answered \"Yes\" and 684 of the registered Republicans answered "Yes.\" True or false? A normal model is an appropriate t for the sampling distribution of sample differences. A. 0 True 23. O False Question 4 In March 2015, the Public Policy Institute of California (PPIC) surveyed 7,525 likely voters Salm'mmm 1 9 points living in California. In the survey, respondents were asked about global warming. PPIC researchers are interested in the difference in viewpoints across racialfethnic groups. PPIC results show that 75% of Latinos view global warming as a serious problem, and 46% of whites view global warming as a serious problem. Using the data from the survey, we calculate the sample difference in global warming viewpoints for lau'no respondents and white respondents to be 29% = 0.29. Researchers can use the 29% sample difference to draw a conclusion about which populations? A. O Latinos and whites living in the United States who are likely voters B. O Latinos and whites who live in California C. O Latinos and whites living in California who are likely to vote I). O Latinos and whites who live in California and are concerned about global warming Question 7 The difference between teenage female and male depression rates estimated from two samples Type numbers in the boxes. is 0.08. The estimated standard error of the sampling distribution is 0.04. What is the 95% 3 Part 1: 5 points confidence interval? Use the critical value z = 1.96. ab Part 2:5 points 10 points Round all calculations to two decimal places. Put lower bound in the first box and upper bound in the second box. Question 8 Quit Smoking: Previous studies suggest that use of nicotine-replacement therapies and Type numbers in the boxes. antidepressants can help people stop smoking. The New England Journal of Medicine 10 points published the results of a double-blind, placebo-controlled experiment to study the effect of nicotine patches and the antidepressant bupropion on quitting smoking. The target for quitting smoking was the 8th day of the experiment. In this experiment researchers randomly assigned smokers to treatments. Of the 160 smokers taking a placebo, 31 stopped smoking by the 8th day. Of the 298 smokers taking only the antidepressant buproprion, 76 stopped smoking by the 8th day. Calculate the estimated standard error for the sampling distribution of differences in sample proportions. The estimated standard error = Round your answer to three decimal places. Question 9h: nun Huan- 5' Quit Smoking: Previous studies suggest that use of nicotine-replacement therapies and Type numbers in the bum\" antidepressants can help people stop smoking. The New England Journal of Medicine a3; Pa" 1" 5min\" published the results of a double-blind, placebo-controlled experiment to study the effect of 35' Pa" 2: 5min\" nicotine patches and the antidepressant bupropion on quitting smoking. The target for quitting minim smoking was the 8th day of the experiment. In this experiment researchers randomly assigned smokers to treatments. Of the 162 smokers taking a placebo, 28 stopped smokinghythe 8th day. Ofthe 272 smokers taking only the antidepressant huproprion, 82 stopped smoking by the 8th day. Calculate the 99% condence interval to estimate the treatment effect of buproprion (placebo-treatment). [The standard error is about 0.0407. Use critical value 2 = 2.576.} 4:.E} Round your answer to three decimal places. Put lower bound in the rst box and upper bound in the second box. Question 10 Gardeners on the west coast of the United States are investigating the difference in survival me numbers in the bom' rates of two flowering plants in drought climates Plant A has a survival rate of 0.61 and plant B \"Pain\" has a survival rate of 0.42. The standard error of the difference in proportions is 0.084. What is the margin of error for a 99% condence interval? Use critical value a = 2.576. Round all calculations to three decimal places