Bb Quantitative Reasoning X C learn-us-east-1-prod-fleet02-xythos.content.blackboardcdn.com/5fc9781c1b46a/5528620?X-Blackboar... Q C K G TP # 0 J Paused Quantitative Reasoning 6 /7 75% + Part 4 - Interpreting Survey and Poll Results (Margins of Error, Confidence Intervals) (Questions 17-20) K 17-18. The National Tobacco Youth Survey asks middle school and high school students to self-report whether or not they have used tobacco in the last 30 days. 17. Among high schoolers who reported using e-cigarettes, (h) _ 53.8 % said they chose JUUL as their usual e-cigarette brand. The margin of error was (i) 1.5 percentage points. 17a Calculate a 95% confidence interval for the true percentages of high school e-cigarette users who choose JUUL as their usual brand. Show your calculations. (3 pt) 17b Can we conclude that the majority of high school e-cigarette users choose JUUL as their usual brand? Why or why not? (3 pt) 18. Among middle schoolers who reported using e-cigarettes, (j) 51.0 % said they chose JUUL as their usual e-cigarette brand. The margin of error was (k) 2.5 percentage points. 18a Calculate a 95% confidence interval for the true percentages of middle school e-cigarette users who choose JUUL as their usual brand. Show your calculations. (3 pt) 18b Can we conclude that the majority of middle school e-cigarette users choose JUUL as their usual brand? Why or why not? (3 pt)