Question

If a survey of 1000 randomly selected registered voters finds 489 have a favorable opinion of...

If a survey of 1000 randomly selected registered voters finds 489 have a favorable opinion of a candidate, what is the 95% confidence interval for the percentage of voters that have a favorable opinion of the candidate?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
In a randomly selected sample of 500 registered voters in a community, 240 individuals say that...
In a randomly selected sample of 500 registered voters in a community, 240 individuals say that they plan to vote for Candidate Y in the upcoming election. Find a 95% confidence interval for the proportion of the registered voter population who plan to vote for Candidate Y. (Round your answers to three decimal places.) Find a 98% confidence interval for the proportion of the registered voter population who plan to vote for Candidate Y. (Round your answers to three decimal...
In a randomly selected sample of 400 registered voters in a community, 160 individuals say that...
In a randomly selected sample of 400 registered voters in a community, 160 individuals say that they plan to vote for Candidate Y in the upcoming election. (a) Find the sample proportion planning to vote for Candidate Y. (Round your answer to two decimal places.) (b) Calculate the standard error of the sample proportion. (Round your answer to three decimal places.) (c) Find a 95% confidence interval for the proportion of the registered voter population who plan to vote for...
A recent poll of 809 randomly selected registered voters revealed that 426 plan to vote for...
A recent poll of 809 randomly selected registered voters revealed that 426 plan to vote for your candidate in the coming election. Is the observed percentage more than 50%? Is the observed percentage significantly more than 50%? How do you know? Base your answer on a two-sided test.
For several years, Democrats have account for 90% of the registered voters in the District. A...
For several years, Democrats have account for 90% of the registered voters in the District. A campaign strategist takes a survey of 75 voters and finds that there are 64 registered Democrats. Has this percentage of registered Democrats changed? A, state the appropriate hypotheses and test using (alpha = 0.07) B, Draw the necessary sampling distribution indicating the critical values for (alpha = 0.07) C, state the decision D, State the conclusion E, what error is risked F construct 93%...
A poll is taken in which 399 out of 550 randomly selected voters indicated their preference...
A poll is taken in which 399 out of 550 randomly selected voters indicated their preference for a certain candidate. (a) Find a 95% confidence interval for p. ≤p≤ (b) Find the margin of error for this 95% confidence interval for p.
In a random sample of 400 registered voters, 144 indicated they plan to vote for Candidate...
In a random sample of 400 registered voters, 144 indicated they plan to vote for Candidate A. Determine a 95% confidence interval for the proportion of all the registered voters who will vote for Candidate A. Value from the appropriate table=    Margin of error=   Lower limit of C.I.=    Upper limit of C.I.=  
1. a. In the 2016 Presidential Election, a campaign manager claimed that 60% of registered voters...
1. a. In the 2016 Presidential Election, a campaign manager claimed that 60% of registered voters in the metropolitan area preferred his candidate. A pollster randomly sampled 1000 registered voters to test the campaign manager’s claim. The pollster finds that 58 percent of the sample of registered voters he polled indicated that they preferred the campaign manager’s candidate. Answer the questions below using the given information. null hypothesis: the alternative hypothesis: explain what test will be used and why: b....
A survey of randomly selected registered voters asked if they considered themselves conservative or liberal and...
A survey of randomly selected registered voters asked if they considered themselves conservative or liberal and if they would be willing to pay higher taxes for gasoline as long as all of the additional revenue went to expanding public transportation. Of the 119 self-described conservatives surveyed, 95 responded that they were willing to pay the higher tax. Among the 131 self-described liberals surveyed, 112 responded that they were willing to pay the higher tax. Compute the test statistic for a...
The city of Raleigh has 9,500 registered voters. There are two candidates for the city council...
The city of Raleigh has 9,500 registered voters. There are two candidates for the city council in an upcoming election: Brown and Feliz. The day before the election, a telephone poll of 350 randomly selected registered voters was conducted. 112 said they'd vote for Brown, 207 said they'd vote for Feliz, and 31 were undecided. a. Who is the population of this survey? b. What is the size of the population? c. What is the size of the sample? d....
A survey of 90 randomly selected homeowners finds that they spend a mean of $66 per...
A survey of 90 randomly selected homeowners finds that they spend a mean of $66 per month on home maintenance. Assume that the population standard deviation is $13 per month. Construct and interpret a 95% confidence interval for the mean amount of money spent per month on home maintenance by all homeowners.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT