Have You Made a Friend Online? A survey of 1060 randomly selected US teens ages 13 to 17 found that 605 of them say they have made a new friend online. Lenhart A, “Teens, Technology, and Friendships,” Pew Research Center, pewresearch.org, August 6, 2015. (a) Find a 90%90% confidence interval for the proportion, p, of all US teens who have made a new friend online. Round your answers to three decimal places. The 90%90% confidence interval is Enter your answer in accordance to item (a) of the question statement to Enter your answer in accordance to item (a) of the question statement . (b) Give the best estimate for p and give the margin of error for the estimate. Round your answers to three decimal places. pˆ=p^= Enter your answer in accordance to item (b) of the question statement margin of error = Enter your answer in accordance to item (b) of the question statement (c) Use the interval to determine whether we can be 90%90% confident that more than half of US teens have made a new friend online. Yes No

Have You Made a Friend Online? A survey of 1060 randomly selected US teens ages 13 to 17 found that 605 of them say they have made a new friend online. Lenhart A, “Teens, Technology, and Friendships,” Pew Research Center, pewresearch.org, August 6, 2015. (a) Find a 90%90% confidence interval for the proportion, p, of all US teens who have made a new friend online. Round your answers to three decimal places. The 90%90% confidence interval is Enter your answer in accordance to item (a) of the question statement to Enter your answer in accordance to item (a) of the question statement . (b) Give the best estimate for p and give the margin of error for the estimate. Round your answers to three decimal places. pˆ=p^= Enter your answer in accordance to item (b) of the question statement margin of error = Enter your answer in accordance to item (b) of the question statement (c) Use the interval to determine whether we can be 90%90% confident that more than half of US teens have made a new friend online. Yes No

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter8: Sequences, Series, And Probability

Section8.7: Probability

Problem 6E: List the sample space of each experiment. Tossing three coins

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