The survey mentioned in Problem 7.5 found that 25 of the 178 households
7.9 
SOC The survey mentioned in Problem 7.5 found that 25 of the 178 households consisted of unmarried couples who were living together. What is your estimate of the population propor- tion? Use the 95% level.
7.10 
PA A random sample of 324 residents of a com- munity revealed that 30% were very satisfied with the quality of trash collection. At the 99% level, what is your estimate of the population value?
7.11 
SOC A random sample of 1,496 respondents of a major metropolitan area was questioned about a number of issues. Construct estimates to the population at the 90% level for each of the results reported below. Express the final confidence in- terval in percentages (e.g., between 40 and 45% agreed that premarital sex was always wrong).
a. When asked to agree or disagree with the state- ment “Explicit sexual books and magazines lead to rape and other sex crimes,” 823 agreed.
b. When asked to agree or disagree with the
statement “Hand guns should be outlawed,” 650 agreed.
c. 375 of the sample agreed that marijuana should
be legalized.
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Posted 11 Jun 2017 12:06 PM
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