school students spend browsing their social media accounts. What might be the implication of the results to the acadenmic performance of the senior high school students? In item 1, suppose that the...

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Extracted text: school students spend browsing their social media accounts. What might be the implication of the results to the acadenmic performance of the senior high school students? In item 1, suppose that the computed sample mean and sample standard deviation were based on a sample of size n length of time a senior high school student spends in a week browsing his or her social media account(s). Compare the confidence intervals in items (1) and (2). 2. 100. Construct a 99% confidence interval for µ, the population average 3. Consider your answers in items 1 and 2. For a fixed confidence coefficient, how does the width of the confidence interval relate to the sample size?


Extracted text: Analyze and answer each problem on simple probability. Show all necessary solutions on a separate sheet of paper. 1. It has been observed that social media has been very attràctive to millennials and has been used as a major platform where they can share their experiences, emotions, and others. A group of senior high school students is interested to know the length of time a senior high school student spends in a week browsing his or her social media account(s). The data gathered by the group is recorded in the table below. Attention Time (in hours) in a Week Given to Social Media Accounts for Random Sample of n = 50 20.7 14.0 16.7 20.7 22.5 48.2 12.1 7.7 2.9 22.2 23.5 20.3 6.4 34.0 1.3 44.5 39.6 23.8 35.6 20.0 10.9 43.1 7.1 14.3 46.0 21.9 23.4 17.5 29.4 9.6 44.1 36.4 13.8 0.8 24.3 1.1 9.3 19.3 3.4 14.6 15.7 32.5 46.6 19.1 10.6 36.9 6.7 27.9 5.4 14.0 Estimate u, the mean attention time given to social media accounts by senior high school students, using a 99% confidence interval. On the average, how many hours a day do senior high