ZuoTi.Pro
Question

You wish to take a same of citizens in a particular city to determine the percentage...

You wish to take a same of citizens in a particular city to determine the percentage of people who are diabetic. A previous survey of 2500 people shows that 215 people are diabetic. How large a sample size will you need to construct a 90% confidence interval for the proportion of citizens who are diabetic, with a margin of error no more than 5%.

math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1


0 0
Add a comment
Know the answer?
Add Answer to:
You wish to take a same of citizens in a particular city to determine the percentage...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • A study will be carried out to estimate the percentage of citizens of a city who...

    A study will be carried out to estimate the percentage of citizens of a city who are in favor of having fluoridated water. How large should the sample be if you want to have at least 95% confidence that the estimate is within 0.015 of the true percentage? From previous studies it is estimated that the proportion of the population that is in favor of having fluoridated water is 0.6. Important note: Use 3 rounded decimals in the critical value....

  • 1. A political candidate has asked you to conduct a poll to determine what percentage of...

    1. A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only wants a 4% margin of error at a 95% confidence level, what size of sample is needed? Give your answer in whole people. Insurance companies are interested in knowing the population percent of drivers who always buckle up before riding in a car. They randomly survey 415 drivers and find that 286 claim to always buckle up....

  • A city planner wants to construct a confidence interval for the proportion of workers who would...

    A city planner wants to construct a confidence interval for the proportion of workers who would take public transportation to work if it were available. What sample size should he use to estimate the proportion to within 4 percentage points at a​ 90% level of​ confidence?

  • A water utility wants to take a sample of residences in a City to estimate the...

    A water utility wants to take a sample of residences in a City to estimate the proportion who have reduced their water consumption during the Past year. In the absence of preliminary data, how large a sample must be taken to that a 96% confidence interval will have a margin of error at .02?

  • A) A certain region would like to estimate the proportion of voters who intend to participate...

    A) A certain region would like to estimate the proportion of voters who intend to participate in upcoming elections. A pilot sample of 25 voters found that 17 of them intended to vote in the election. Determine the additional number of voters that need to be sampled to construct a 95​% interval with a margin of error equal to 0.06 to estimate the proportion. The region should sample ____ additional voters. B) Determine the sample size needed to construct a...

  • According to a health organization in a certain​ country, 21.8​% of the population smoked in 2008....

    According to a health organization in a certain​ country, 21.8​% of the population smoked in 2008. In​ 2014, a random sample of 650 citizens of this country was​ selected, 129 of whom smoked. Complete parts a through c below. a. Construct a 90​% confidence interval to estimate the actual proportion of people who smoked in this country in 2014. A 90​% confidence interval to estimate the actual proportion has a lower limit of nothing and an upper limit of nothing....

  • Consider a simple poll that is measuring the proportion of citizens that hold a particular political...

    Consider a simple poll that is measuring the proportion of citizens that hold a particular political belief. What is a conservative, "worst case scenario" sample size if you want the margin of error to be 5.4%? Sample Size =

  • a. You wish to compute the 95% confidence interval for the population proportion. How large a...

    a. You wish to compute the 95% confidence interval for the population proportion. How large a sample should you draw to ensure that the sample proportion does not deviate from the population proportion by more than 0.12? No prior estimate for the population proportion is available. Round intermediate calculations to at least 4 decimal places and "z" value to 3 decimal places. Round up your answer to the nearest whole number.)   Sample Size - b. A business student is interested...

  • A large city with chronic economic problems is considering legalizing casino gambling. The city council wants...

    A large city with chronic economic problems is considering legalizing casino gambling. The city council wants to estimate the proportion of all adults in the city who favor legalize casino gambling. This city took a small sample of adults and found 58% favored gambling .What sample size is needed if the margin of error is set to be 3% for a 95% confidence interval?

  • medical researcher wishes to determine the percentage of females who take vita to be 99% confident...

    medical researcher wishes to determine the percentage of females who take vita to be 99% confident that the estimate is within 2 percentage points of th survey showed that 25% of females took vitamins. How large should a sample size be? 3 A A medical researcher wishes to determine the percentage of females who take vitamins. He wishes e true proportion. A recent a) b) If no estimate of the sample proportion is available, how large should the sample be?

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT