Most Americans love participating in or at least watching

Chapter 8, Problem 63E

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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?

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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:

 

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