Did I Get ThisResearchers from Dartmouth Medical School conducted a study in 2003 to look at the connection between watching actors smoking in movies and smoking initiation among adolescents. In the study, 6,522 U.S. adolescents ages 10-14 who had never tried smoking were randomly selected. Of those who subsequently tried smoking for the first time, 38% did so because of exposure to smoking in the movies.Estimate the proportion of all U.S. adolescents ages 10-14 who started smoking because of seeing actors smoke in movies by constructing a 95% confidence interval.Reset this ActivityDid I Get ThisHarris Interactive® conducted an online study from January 3 to 10, 2006 among a nationwide sample of 1,040 U.S. adults (ages 18 years and over), of whom 565 currently use organic foods in preparing meals. Figures for age by gender, race/ethnicity, education, region, and household income were weighted to reflect the total U.S. adult population. Propensity score weighting was used to adjust for respondents' propensity to be online. Construct a 99% confidence interval for the proportion of all U.S. adults who use organic foods in preparing meals.Reset this ActivityDid I Get ThisBased on the answer to the previous question, what is the margin of error of the confidence interval for the number of U.S. adults who use organic foods in preparing meals?0.010.040.080.543

A government health official is interested in whether there has been a statistically significant decrease in teen smoking rates. In 2013, 8.4 percent of 12th graders had used tobacco in the past 30 days. With this data, we test the following hypotheses at the 5% significance level.The health official surveys 200 randomly selected 12th graders and finds that 14 of them have used tobacco in the past 30 days.H0: The percentage of 12th graders who have smoked in the past 30 days is equal to 8.4%.Ha: The percentage of 12th graders who have smoked in the past 30 days is greater than 8.4%.The p-value is 0.09. Which conclusion is correct? Reject H0. Accept H0. Fail to reject H0.

1. A group of researchers has implemented a smoking prevention program in a group of adolescents to promote cognitive and behavioral impact on a healthy lifestyle. The independent variable of the study is:*1 pointA. Cognitive and behavioral influence after the programB. Group of adolescentsC. Healthy lifestyleD. Smoking prevention program2. True experimental researches generally have higher internal validity due to the fact that there are no threats related to temporal ambiguity. This is because experimental research design is inherently:*1 pointA. Highly controlledB. ManipulativeC. ProspectiveD. Retrospective3. Lack of randomizations in experiments often leads to *1 pointA. Higher generalizabilityB. Robust representativenessC. Stronger inferencesD. Weaker conclusions

A researcher is wondering whether the smoking habits of young adults (18-25 years of age) in a certaincity in the U.S. are the same as the proportion of the general population of young adults in the U.S. Arecent study stated that the proportion of young adults who reported smoking at least twice a week ormore in the last month was 0.16. The researcher collected data from a random sample of 75 adults in thecity of interest. State the hypotheses to be tested for this study

wherein a respondent study provided by the Indonesian Development Foundation (2023) found approximately 52% of e-cigarette users were between the ages of 18-27

3- Put the words in the right tense or form. (3.5marks)Smoking has become very common and fashionable, especially among young boys. Thishabit usually (begin)……………..………… at school when boys try to experiment with everynew thing that they can lay their hands on. Despite the (warn)…………………………. given bydoctors about the (harm) ………..….………………..effects of smoking, people continue tosmoke. Smokers are (addiction)……………………………… to it, and even if they want to, theycannot refrain from picking up a cigar or cigarette and puffing away.In the beginning, a teenager may (take)……………….…………. a few puffs from his friend'scigarette; then comes a time when it becomes an indispensable part of his life. Severalpuffs lead to the formation of a habit. Soon smoking begins to(effect)………………………………. the health of the smoker. He becomes a chain-smoker. Thissmoke is (toxins)………………………………. and the nicotine in the cigarette is known to causecancer. It is ironic that despite the fact that every smoker is aware of the ill effectsof smoking, he doesn’t give it up.4) Match each sentence part in A with its completion in B to get a coherent paragraph.(2marks)A B Answers1/ Pollution is a major environmental2/ It endangers all3/ In fact, Man is the one4/ He is the cause of air, landa) the creatures on earth.b) risk to health.c) who can be blamedd) offenderse) noise and water pollution.1+………2+………3+..……4+……..Good work