Many teens have posted profiles on social media websites. A sample survey in 2007
asked a random sample of teens with online profiles if they included false information in
their profiles. Of 170 younger teens (aged 12 to 14), 117 said yes. Of 317 older teens
(aged 15 to 17), 152 said yes.
Is there significant evidence to conclude that the proportion of younger teens who
include false information in their online profiles is larger than the proportion of older
teens at the 0.05 level of significance?
Many Teens Have Posted Profiles On Social Media Websites A Sample Survey In 2007 Asked A Random Sample Of Teens With On 1 (59.42 KiB) Viewed 33 times
Many teens have posted profiles on social media websites. A sample survey in 2007 asked a random sample of teens with online profiles if they included false information in their profiles. Of 170 younger teens (aged 12 to 14), 117 said yes. Of 317 older teens (aged 15 to 17), 152 said yes. Is there significant evidence to conclude that the proportion of younger teens who include false information in their online profiles is larger than the proportion of older teens at the 0.05 level of significance? (a) State the hypotheses. (2 points) (b) Verify the requirements to perform the hypothesis test. (2 points) (c) Test the null hypothesis. Specify the P-value. ( 2 points) (d) State the conclusion. (2 points)
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