20227 Wed 23 Mar "5' G} 16% I coursework u COUTSG'.WOI1 Question 5 Background : TikTok users by age group TikTok is a videobased social media app that launched in 2016 and has been growing in popularity. A recent study by Statista reported that as of 2021, TikTok had a total of 78.7 million users in the United States and is very popular amongst teenagers. However, you are interested in measuring how TikTok usage compares between individuals in their 20s and individuals in their 305. Let p1 represent the population proportion of American adults ages 20-29 who use TikTok, while p2 represents the population proportion of American adults ages 30-39 who use TikTok. To estimate the difference in the population proportion p1 - p2, a random sample of 320 American adults ages 2029 and a random sample of 412 American adults ages 3039 were selected and asked if they use TikTok. We used R to construct a 99% confidence interval to estimate p1 - p2: #tt [1] \"The 99% confidence interval is given as: (-8.6787, 9.9556." Question 5 Subquestions "SI'SD What is the point estimate for the unknown population parameter p1 - p2? points ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, I'll - ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, No answer entered. Click above to enter an answer. 5.b . . What IS the value of the 99% margin of error? TBD points ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, |" ~. No answer entered. Click above to enter an answer. 15':oim(s) Based on the 99% confidence interval, would you suggest that there is a difference between the two population proportions? |" C] Yes, because, based on the 99% confidence interval, 0 is a reasonable value for the unknown population parameter p1 - P2- CJ No, because, based on the 99% confidence interval, 0 is a reasonable value for the unknown population parameter p1 92- C] Yes, because the confidence interval was constructed using on results from large random samples. f'soins) A 95% confidence interval based on the same data would result in an interval that is the 99% confidence interval. Ii C] wider than D narrower than C] the same width as