Statistics: Confidence Intervals – Calculation – #201


Question: An article in a Florida newspaper reported on the topics that teenagers most want to discuss with their parents.

Results of poll:

46% would like more discussion about the family’s financial situation

37% would like to talk about school

39% would like to talk about religion

Percentages were based on a national sampling of 513 teenagers.

Estimate the proportion of all teenagers who want more family discussions about school.

Use a 90% confidence level.

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