A Sociologist Is Studying the Effect of Having Children Within

question 57

Multiple Choice

A sociologist is studying the effect of having children within the first 2 years of marriage on the divorce rate.Using hospital birth records,she selects a simple random sample of 200 couples who had children within the first 2 years of marriage.Following up on these couples,she finds that 80 couples are divorced within 5 years.Let p = the population proportion of couples who had children within the first 2 years of marriage and are divorced within 5 years.What is a 90% plus four confidence interval for the proportion of couples who had children within the first 2 years of marriage and are divorced within 5 years?

• A)0.402 ± 0.035
• B)0.402 ± 0.057
• C)0.402 ± 0.067
• D)0.402 ± 0.088

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Definitions:

Reasonably Assured

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