ZuoTi.Pro
Question

3. A sample survey interviews an SRS of 267 college women. Suppose (as is roughly true) that 64 % of all college women have b

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

Mean of the sampling distribution = 0.65

Standard deviation of the sampling distribution = 0.64 * 0.36/267 = 0.03

z = (0.70 - 0.64)/0.03 = 2.04

P(z or larger) = 0.0206

0 0
Add a comment
Know the answer?
Add Answer to:
3. A sample survey interviews an SRS of 267 college women. Suppose (as is roughly true)...
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 sample survey interviews an SRS of 267 college women. Suppose(as is roughly true) that 70%...

    )A sample survey interviews an SRS of 267 college women. Suppose(as is roughly true) that 70% of all college women have been on a diet within the past 12months. (a) What are the mean and standard deviation of the sampling distribution of the sample proportion ˆpin random samples of size 267? (b) Explain why, under these conditions, the sampling distribution of ˆpis approximately normal. (c) Using the normal approximation, find the probability that 76% or more of the women in...

  • 6. A sample survey interviews an SRS of 265 college wo men. Suppose as is roughly...

    6. A sample survey interviews an SRS of 265 college wo men. Suppose as is roughly true that 68 % of all college women have been on a diet within the past 2 months. What are the mean and standard deviation of the sampling distribution for samples of 265 women? The mean of the sampling distribution, p-+0.01) The standard deviation of the sampling distribution of p-hat- 0.01) Use a Normal approximation to find the probability that 81 % or more...

  • A sample survey interviews an SRS of 207 college women. Suppose that 68% of all college...

    A sample survey interviews an SRS of 207 college women. Suppose that 68% of all college women have been on a diet within the last 12 months. What is the probability that 73% or more of the women in the sample have been on a diet? Use 4 decimal places.

  • Suppose that 88% of college men and 84% of college women were employed last summer, based on a sample survey that interv...

    Suppose that 88% of college men and 84% of college women were employed last summer, based on a sample survey that interviewed SRSs of 400 college men and 400 college women. The two samples were independent. a) What is the approximate distribution of the proportion p̂F of women who worked last summer? What is the approximate distribution of the proportion p̂M of men who worked? b) The survey wants to compare men and women. What is the approximate distribution of...

  • (16.09) We have the survey data on the body mass index (BMI) of 640 young women....

    (16.09) We have the survey data on the body mass index (BMI) of 640 young women. The mean BMI in the sample was x¯¯¯=26.6x¯=26.6. We treated these data as an SRS from a Normally distributed population with standard deviation σ=σ=7.8 . Find the margins of error for 99 % confidence based on SRSs of N young women. N margins of error (±±0.0001) 139 406 1558 10. (16.10) An SRS of 400 high school seniors gained an average of x¯¯¯x¯ =...

  • 3) Suppose you know the population mean and are interested in seeing how a sample average...

    3) Suppose you know the population mean and are interested in seeing how a sample average compares to this mean. You take some samples of size 10 and other samples of size 35. How will the sampling distribution of the means be different for the larger size samples compared to the sampling distribution of the means for the smaller size samples? (Note: This is a multiple-choice question - write the letter of the correct answer.) (1 point) A. The sampling...

  • ome he proportion of adult women in the United States is approximately 51%. A marketing survey...

    ome he proportion of adult women in the United States is approximately 51%. A marketing survey telephones 300 people at random. (a) (3pts) What is the sampling distribution of the observed proportion that are women? State your answer with the mean and the standard deviation. 30 o (b) (3pts) would you be surprised to find 56% women in a sample of size 300? Explain. (c) (2 pts) What is the probability that more than S0% women in this survey? (d)...

  • 3. Suppose that 88% of college men and 84% of college women were employed last summer,...

    3. Suppose that 88% of college men and 84% of college women were employed last summer, based on a sample survey that interviewed SRSs of 400 college men and 400 college women. The two samples were independent. a) What is the approximate distribution of the proportion pF of women who worked last summer? What is the approximate distribution of the proportion pM of men who worked? Write your answer in a Text Box. b) The survey wants to compare men...

  • We have the survey data on the body mass index (BMI) of 642 young women. The...

    We have the survey data on the body mass index (BMI) of 642 young women. The mean BMI in the sample was x¯=26.1. We treated these data as an SRS from a Normally distributed population with standard deviation ?=7.3. Give confidence intervals for the mean BMI and the margins of error for 90%, 95%, and 99% confidence. Conf. Level Interval (±±0.01) margins of error (±±0.0001) 90% to 95% to 99% to

  • Data Se Sample Variables 1 Proportions Observations 1000 p-bar for 1,000 samples (n 50] drawn fro...

    Data Se Sample Variables 1 Proportions Observations 1000 p-bar for 1,000 samples (n 50] drawn from a binomial population (p 0.30) Minitab was used to generate the samples. Observations> Observations Variable Type Form Values Missing Sample Proportion Quantitative Numeric 1000 Variable Correlation Correlation If the sample you select for your statistical study is one of the 1,000 samples we drew in our repeated sampling, the worst-luck sample you could draw proportion. Use the tool to sort the observed values of...

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