Question

A poll of 3,200 voters were asked what they thought the most significant issue was in...

A poll of 3,200 voters were asked what they thought the most significant issue was in the upcoming election. Sixty-eight percent answered the economy.

a) Construct a 90% confidence interval for the population proportion of voters who feel the economy is the most important issue. Write a complete sentence describing the meaning of this confidence interval.

b) Construct a 95% confidence interval for the population proportion of voters who feel the economy is the most important issue. Write a complete sentence describing the meaning of this confidence interval.

c) Explain, using complete sentences, why the confidence interval in part b) is wider.

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A poll of 3,200 voters were asked what they thought the most significant issue was in...
A poll of 3,200 voters were asked what they thought the most significant issue was in the upcoming election. Sixty-eight percent answered the economy. a) Construct a 90% confidence interval for the population proportion of voters who feel the economy is the most important issue. Write a complete sentence describing the meaning of this confidence interval. b) Construct a 95% confidence interval for the population proportion of voters who feel the economy is the most important issue. Write a complete...
A random sample of registered voters were asked about an issue on the ballot of an...
A random sample of registered voters were asked about an issue on the ballot of an upcoming election. The proportion of those surveyed who plan to vote "Yes" on the issue is 0.54 , with a margin of error of 0.06 . Construct a confidence interval for the proportion of registered voters that plan to vote "Yes" on the issue.
A survey of 500 likely voters showed that 385 felt that the economy was the most...
A survey of 500 likely voters showed that 385 felt that the economy was the most important national issue. Find a point estimate (p-hat0 for p, the population proportion of voters who feel the ecomomy is the most important national issue. A) 385 B) 0,77 C) 1.30 D) 0.08
In a poll to estimate presidential popularity, each person in a random sample of 990 voters...
In a poll to estimate presidential popularity, each person in a random sample of 990 voters was asked to agree with one of the following statements: 1. The president is doing a good job. 2. The president is doing a poor job. 3. I have no opinion. A total of 700 respondents selected the first statement, indicating they thought the president was doing a good job. a. Construct a 95% confidence interval for the proportion of respondents who feel the...
In a poll to estimate presidential popularity, each person in a random sample of 1,230 voters...
In a poll to estimate presidential popularity, each person in a random sample of 1,230 voters was asked to agree with one of the following statements: The president is doing a good job. The president is doing a poor job. I have no opinion. A total of 675 respondents selected the first statement, indicating they thought the president was doing a good job. Construct a 99% confidence interval for the proportion of respondents who feel the president is doing a...
In a poll to estimate presidential popularity, each person in a random sample of 1,500 voters...
In a poll to estimate presidential popularity, each person in a random sample of 1,500 voters was asked to agree with one of the following statements: 1. The president is doing a good job. 2. The president is doing a poor job. 3. I have no opinion. A total of 690 respondents selected the first statement, indicating they thought the president was doing a good job. (a) Construct a 98% confidence interval for the proportion of respondents who feel the...
In a poll to estimate presidential popularity, each person in a random sample of 950 voters...
In a poll to estimate presidential popularity, each person in a random sample of 950 voters was asked to agree with one of the following statements: The president is doing a good job. The president is doing a poor job. I have no opinion. A total of 500 respondents selected the first statement, indicating they thought the president was doing a good job. Construct a 90% confidence interval for the proportion of respondents who feel the president is doing a...
From a SRS of 1000 registered voters in the U.S., 75% said that they planned to...
From a SRS of 1000 registered voters in the U.S., 75% said that they planned to vote in the next national election. Find a 95% confidence interval estimate for the population proportion of registered voters in the United States who plan to vote in the next general election. a)     Find the margin of error b)    Construct the endpoints of the interval c)     Write the interval
In a poll to estimate presidential popularity, each person in a random sample of 1,310 voters...
In a poll to estimate presidential popularity, each person in a random sample of 1,310 voters was asked to agree with one of the following statements: The president is doing a good job. The president is doing a poor job. I have no opinion. A total of 625 respondents selected the first statement, indicating they thought the president was doing a good job. Construct a 95% confidence interval for the proportion of respondents who feel the president is doing a...
in a gallup poll of 1005 individuals, 452 thought they were worse off financially than a...
in a gallup poll of 1005 individuals, 452 thought they were worse off financially than a year ago. find and interpret the 98% confidence interval for the true proportion of individuals who feel they are worse off financially than a year ago
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT