An article a Florida newspaper reported on the topics that teenagers most want t

Question

An article a Florida newspaper reported on the topics that teenagers most want to discuss with their parents. The findings, the results of a poll, showed that 46% would like more discussion abouth the family's financial situation, 37% would like to talk about school, 30% would like to talk about religion. These and other percentages were based on a national sampling of 506 teenagers. Assuming that it is valid to apply the z-method, estimate the proportion of alla teenagers who want more family discussion about school. Use a 99% confidence level.

Explanation / Answer

An article a Florida newspaper reported on the topics that teenagers most want to discuss with their parents. The findings, the results of a poll, showed that 46% would like more discussion abouth the family's financial situation, 37% would like to talk about school, 30% would like to talk about religion. These and other percentages were based on a national sampling of 506 teenagers. Assuming that it is valid to apply the z-method, estimate the proportion of alla teenagers who want more family discussion about school. Use a 99% confidence level.

n=506

37% would like to talk about school

p=0.37

Z value for 99% confidence =2.576

Margin of error = z*se=2.576*sqrt(0.37*(1-0.63)/506))

=0.05529

99% CI= 0.37±0.055

Answer : C

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