Question 1 (10 marks) A social research centre is working on a study which reviews the number of hours a teenager spends
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Question 1 (10 marks) A social research centre is working on a study which reviews the number of hours a teenager spends
Question 1 (10 marks) A social research centre is working on a study which reviews the number of hours a teenager spends on social media in a day. The table below shows the result from a random sample of teenagers: Number of hours spends on social media 1 hour or less More than 1 hour to 2 hours More than 2 hours to 3 hours More than 3 hours to 4 hours More than 4 hours to 5 hours More than 5 hours Number of teenagers 70 51 45 43 21 20 Construct a 90% confidence interval estimate of the population proportion of teenagers spend more than 3 hours on social media in a day.