Solution Found!
Results of a public opinion poll reported on the Internet2
Chapter 8, Problem 24E(choose chapter or problem)
Problem 24E
Results of a public opinion poll reported on the Internet2 indicated that 69% of respondents rated the cost of gasoline as a crisis or major problem. The article states that 1001 adults, age 18 years or older, were interviewed and that the results have a sampling error of 3%. How was the 3% calculated, and how should it be interpreted? Can we conclude that a majority of the individuals in the 18+ age group felt that cost of gasoline was a crisis or major problem?
Questions & Answers
QUESTION:
Problem 24E
Results of a public opinion poll reported on the Internet2 indicated that 69% of respondents rated the cost of gasoline as a crisis or major problem. The article states that 1001 adults, age 18 years or older, were interviewed and that the results have a sampling error of 3%. How was the 3% calculated, and how should it be interpreted? Can we conclude that a majority of the individuals in the 18+ age group felt that cost of gasoline was a crisis or major problem?
ANSWER:
Step 1 of 3
Proportion of respondents rated cost of gasoline as a problem: 0.69
Number of adults interviewed:
Since sample proportion is p = 0.69,
