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10.67 The Pew Research Center conducted a poll in January 2014 of online adults who use social networking sites. According to this poll, 89% of the 18-29 year olds and 82% of the 30-49 year olds who are online use social networking sites (www.pewinternet.org). Suppose that this survey included 562 online adults in the 18-29 age group and 624 in the 30-49 age group. and be the proportion of all online adults in the a. Let P2 P1 age groups 18-29 and 30-49, respectively, who use social networking sites. Construct a 95% confidence interval for P1 P2 b. Using a 1% significance level, can you conclude that pi is different from p2? Use both the critical-value and the p-value approaches

10.67 The Pew Research Center conducted a poll in January 2014 of online adults who use social networking sites. According to this poll, 89% of the 18-29 year olds and 82% of the 30-49 year olds who are online use social networking sites (www.pewinternet.org). Suppose that this survey included 562 online adults in the 18-29 age group and 624 in the 30-49 age group. and be the proportion of all online adults in the a. Let P2 P1 age groups 18-29 and 30-49, respectively, who use social networking sites. Construct a 95% confidence interval for P1 P2 b. Using a 1% significance level, can you conclude that pi is different from p2? Use both the critical-value and the p-value approaches

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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10.67 The Pew Research Center conducted a poll in January 2014 of online adults who use social networking sites. According to this poll, 89% of the 18-29 year olds and 82% of the 30-49 year olds who are online use social networking sites (www.pewinternet.org). Suppose that this survey included 562 online adults in the 18-29 age group and 624 in the 30-49 age group. and be the proportion of all online adults in the a. Let P2 P1 age groups 18-29 and 30-49, respectively, who use social networking sites. Construct a 95% confidence interval for P1 P2 b. Using a 1% significance level, can you conclude that pi is different from p2? Use both the critical-value and the p-value approaches
Transcribed Image Text:10.67 The Pew Research Center conducted a poll in January 2014 of online adults who use social networking sites. According to this poll, 89% of the 18-29 year olds and 82% of the 30-49 year olds who are online use social networking sites (www.pewinternet.org). Suppose that this survey included 562 online adults in the 18-29 age group and 624 in the 30-49 age group. and be the proportion of all online adults in the a. Let P2 P1 age groups 18-29 and 30-49, respectively, who use social networking sites. Construct a 95% confidence interval for P1 P2 b. Using a 1% significance level, can you conclude that pi is different from p2? Use both the critical-value and the p-value approaches
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