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
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
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 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
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