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Most Americans love participating in or at least watching
Chapter 8, Problem 63E(choose chapter or problem)
Problem 63E
Most Americans love participating in or at least watching sporting events. Some feel that sports have more than just entertainment value. In a survey of 1000 adults, conducted by KRC Research & Consulting , 78% felt that spectator sports have a positive effect on society.9
a Find a 95% confidence interval for the percentage of the public that feel that sports have a positive effect on society.
b The poll reported a margin of error of “plus or minus 3.1%.” Does this agree with your answer to part (a)? What value of p produces the margin of error given by the poll?
Questions & Answers
QUESTION:
Problem 63E
Most Americans love participating in or at least watching sporting events. Some feel that sports have more than just entertainment value. In a survey of 1000 adults, conducted by KRC Research & Consulting , 78% felt that spectator sports have a positive effect on society.9
a Find a 95% confidence interval for the percentage of the public that feel that sports have a positive effect on society.
b The poll reported a margin of error of “plus or minus 3.1%.” Does this agree with your answer to part (a)? What value of p produces the margin of error given by the poll?
ANSWER:
Step 1 of 4
Given,
The sample size,
The proportion of the public that feel that sports have a positive effect,
The proportion of the public that feel that sports have a negative effect,
Using the given data let’s determine the following: