Question

A survey of 100 people showed that 49% preferred brand X cola. Find error bounds on...

A survey of 100 people showed that 49% preferred brand X cola. Find error bounds on the proportion of the population who prefer brand X, using the following. (See Example 5. Round your answers to four decimal places.)

0 0
Add a comment Improve this question Transcribed image text
Know the answer?
Add Answer to:
A survey of 100 people showed that 49% preferred brand X cola. Find error bounds on...
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 survey of 100 mayonnaise purchasers showed that 68 were loyal to one brand. For 100...

    A survey of 100 mayonnaise purchasers showed that 68 were loyal to one brand. For 100 bath soap purchasers, only 45 were loyal to one brand. (a) Form a 90 percent confidence interval for the difference of proportions. (Round your answers to 4 decimal places. Negative values should be indicated by a minus sign.) The 90% confidence interval is from to (b) Does it include zero? Yes No

  • According to a survey of 25,000 households. 49% of the people watching a special event on...

    According to a survey of 25,000 households. 49% of the people watching a special event on TV enoyed the commercials more than the event tsell. Complete parts a through e below based on a random sample of nine people who watched the special event a. What is the probability that exactly three people enjoyed the commercials more than the event? The probability is (Round to four decimal places as needed) b. What is the probability that less than four people...

  • 8.3.57 Question Help A survey of 437 women revealed that 49% wear flat shoes to work....

    8.3.57 Question Help A survey of 437 women revealed that 49% wear flat shoes to work. a. Use this sample information to develop a 95% confidence interval for the population proportion of women who wear flat shoes to work. b. Suppose that the people who administered this survey now wish to estimate the proportion of women who wear athletic shoes to work with a margin of error of 0.01 with 99% confidence. Determine the sample size required. 1 sps (Round...

  • Suppose that insurance companies did a survey. They randomly surveyed 440 drivers and found that 310...

    Suppose that insurance companies did a survey. They randomly surveyed 440 drivers and found that 310 claimed they always buckle up. We are interested in the population proportion of drivers who claim they always buckle up. Part A: (i) The observed count of drivers who claimed they always buckle up in this sample is = ? (ii) The sample size = ? (iii) The observed sample proportion = ? Part B: In words, define the random variables X and p̂....

  • A recent drug survey showed an increase in the use of drugs and alcohol among local...

    A recent drug survey showed an increase in the use of drugs and alcohol among local high school seniors as compared to the national percent. Suppose that a survey of 100 local seniors and 100 national seniors is conducted to see if the proportion of drug and alcohol use is higher locally than nationally. Locally, 67 seniors reported using drugs or alcohol within the past month, while 60 national seniors reported using them. Conduct a hypothesis test at the 5%...

  • 1. If n=28, (x-bar)=49, and s=6, find the margin of error at a 95% confidence level....

    1. If n=28, (x-bar)=49, and s=6, find the margin of error at a 95% confidence level. Give your answer to two decimal places. 2. In a survey, 10 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $39 and standard deviation of $8. Find the margin of error at a 90% confidence level. Give your answer to two decimal places. 3. If n=20, (x-bar)=50, and s=20, construct...

  • Are soft drink preferences regional? In an effort to find out, a market researcher surveyed 150...

    Are soft drink preferences regional? In an effort to find out, a market researcher surveyed 150 consumers in Birmingham and found that 96 listed Coca-Cola has their preferred soft drink. The researcher also surveyed 150 consumers in Denver and found that 82 indicated that Coca-Cola was their preferred soft drink. Let pB be the population proportion of all Birmingham consumers who prefer Coca-Cola. Let pD be the population proportion of all Denver consumers who prefer Coca-Cola. What is the value...

  • 62% of Americans like a certain car brand Margin of error is 5.5% Confidence Level is...

    62% of Americans like a certain car brand Margin of error is 5.5% Confidence Level is 95% a) Find the number of people surveyed Choose a) 77 b) 100 c) 300 d)600 e)1200 b)What is the 90% confidence interval for the population proportion who like the car brand. a) (5%, 95%) b) (10%, 90%) c) (56.5%, 67.5%) d) (57.4%, 66.6%) e) (53%, 71%)

  • Suppose that insurance companies did a survey. They randomly surveyed 410 drivers and found that ...

    Suppose that insurance companies did a survey. They randomly surveyed 410 drivers and found that 300 claimed they always buckle up. We are interested in the population proportion of drivers who claim they always buckle up. NOTE: If you are using a Student's t-distribution, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though.) Part (a) (i) Enter an exact number as an integer, fraction, or decimal. x = (ii) Enter...

  • Do you prefer paintings in which the people are fully clothed? This question was asked by...

    Do you prefer paintings in which the people are fully clothed? This question was asked by a professional survey group on behalf of a national arts organization. A random sample of n1 = 56 people who are conservative voters showed that r1 = 43 said yes. Another random sample of n2 = 65 people who are liberal voters showed that r2 = 37 said yes. Does this indicate that the population proportion of conservative voters who prefer art with fully...

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