Final answer:
The claim that about three-quarters of a million U.S. teenagers become pregnant each year is false; sex education inclusive of safer sexual practices is supported by most U.S. adults. To calculate the confidence interval for teens planning to study abroad, additional data is required, while most U.S. children still grow up in two-parent households.
Step-by-step explanation:
The statement given to the student, 'About three-quarters of a million U.S. teenagers become pregnant each year,' is false. The information provided does not support this claim, and current research indicates teenage pregnancy rates have been declining. It's important to have accurate information regarding sexual education and teenage pregnancy to foster effective educational programs and public policies.
The majority of U.S. adults support sex education in schools that includes information on safer sexual practices rather than an abstinence-only curriculum. In addition, data suggest that while many youths value monogamy, they also have progressive views on topics like premarital sex and childbirth outside of marriage.
Regarding the confidence interval question, to calculate the 95 percent confidence interval for the true proportion of U.S. teens planning to go to college in another country, one would require additional statistical data such as the standard deviation or standard error for the proportion.
Finally, the majority of U.S. children live in two-parent households, which supports the idea that while attitudes towards sex and sexuality amongst the youth are evolving, traditional family structures remain prevalent.