Question

A Department of Transportation survey of 1480 American drivers stated that 873 drivers wear their seat...

A Department of Transportation survey of 1480 American drivers stated that 873 drivers wear their seat belts . Construct a 99% confidence interval to estimate the true proportion of all American drivers that wear seat belts.

0 0
Add a comment Improve this question Transcribed image text
Know the answer?
Add Answer to:
A Department of Transportation survey of 1480 American drivers stated that 873 drivers wear their seat...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • A consumer agency wants to estimate the proportion of all drivers who wear seat belts while...

    A consumer agency wants to estimate the proportion of all drivers who wear seat belts while driving. A preliminary study of 600 people has shown that 436 of drivers wear seat belts while driving. How large should the sample size be so that the 99% confidence interval for the population proportion has a maximum error of .03?

  • In a survey of 1000 drivers from Region A, 849 wear a seat belt. In a...

    In a survey of 1000 drivers from Region A, 849 wear a seat belt. In a survey of 1000 drivers from Region B, 906 wear a seat belt. At a = 0.01, is there evidence to support the claim that the proportion of drivers who wear seat belts in Region A is less than the proportion of drivers who wear seat belts in Region B? Assume that the samples are random and independent. Complete parts (a) through (e) below. (a)...

  • In a survey of 490 drivers from the South, 412 wear a seat belt. In a...

    In a survey of 490 drivers from the South, 412 wear a seat belt. In a survey of 350 drivers from the Northeast, 291 wear a seat belt. At 0.07, can you support the claim that the proportion of drivers who wear seat belts is greater in the South than in the Northeast? Assume the random samples are independent. Complete parts (a) through (e) (a) Identify the claim and state Ho and H The claim is the proportion of drivers...

  • In a survey of 1000 drivers from Region A, 878 wear a seat belt. In a...

    In a survey of 1000 drivers from Region A, 878 wear a seat belt. In a survey of 1000 drivers from Region B. 923 wear a seat belt At a 001, is there evidence to support the dlaim that the proportion of drivers who wear seat belts in Region A is less than the proportion of drivers who wear seat belts in Region 8? Assume that the samples are random and independent Complete parts (a) through (e) below Identily the...

  • A study was conducted to compare the proportion of drivers in Boston and New York who wore seat b...

    A study was conducted to compare the proportion of drivers in Boston and New York who wore seat belts while driving. Data were collected, and the proportion wearing seat belts in Boston was 0.581 and the proportion wearing seat belts in New York was 0.832. Due to local laws at the time the study was conducted, it was suspected that a smaller proportion of drivers wear seat belts in Boston than New York. (a) Find the test statistic for this...

  • An auto insurance company wants to know the proportion of drivers who always buckle their seat belts when driving. They...

    An auto insurance company wants to know the proportion of drivers who always buckle their seat belts when driving. They randomly survey 400 drivers and find that 320 always buckle up. What is the 99% confidence interval for the population proportion of drivers who always buckle their seat belt? Round to 3 decimal places.

  • A survey of 499 women for the American Orthopedic Foot and Ankle Society revealed that 38%...

    A survey of 499 women for the American Orthopedic Foot and Ankle Society revealed that 38% wear flats to work. (a)Construct a 99% confidence interval for the population proportion of women who wear flats to work. (b) Suppose the society also wishes to estimate the proportion of women who wear athletic shoes to work with a margin of error of 0.01 with 95% confidence. Determine the sample size required.

  • A study was conducted to compare the proportion of drivers in Boston and New York who...

    A study was conducted to compare the proportion of drivers in Boston and New York who wore seat belts while driving. Data were collected, and the proportion wearing seat belts in Boston was 0.581 and the proportion wearing seat belts in New York was 0.832. Due to local laws at the time the study was conducted, it was suspected that a smaller proportion of drivers wear seat belts in Boston than New York. (a) Find the test statistic for this...

  • An insurance company collects data on seat-belt use among drivers in a country. Of 1700 drivers...

    An insurance company collects data on seat-belt use among drivers in a country. Of 1700 drivers 30-39 years old, 30% said that they buckle up, whereas 488 of 2000 drivers 55-64 years old said that they did. Find a 99% confidence interval for the difference between the proportions of seat-belt users for drivers in the age groups 30-39 years and 55-64 years. Construct a 99% confidence interval The 99% confidence interval for p1-p2 is from Round to three decimal places...

  • In a survey of 1000 US adults, 700 think police officers should be required to wear...

    In a survey of 1000 US adults, 700 think police officers should be required to wear body cameras while on duty. Construct a 99% confidence interval for the population proportion.

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