ALL ABOUT STATS

Instruction: Show complete work to receive full credit. 1. In a Heart Asia survey of 3000 working men, 56% said "they feel guilty that they don't spend more time with their families." What is the length of the 90% confidence interval for the proportion p of all working men who hold this view?2. The study referenced in Problem 1 talked to teens in smaller focus groups, but also interviewed additional teens over the phone. When the study was complete, 588 teens had answered the question about their Facebook friends with 500 teens saying that they have more than 500 friends. Find a 90% confidence interval for the true proportion of teens that would re- port having more than 500 Facebook friends based on this larger sample. Compare the results to those in Problem 1