Question

31) – (33): A random sample of size n = 40 is selected from a population...

31) – (33): A random sample of size n = 40 is selected from a population that has a proportion of successes p = 0.8.
31) Determine the mean proportion of the sampling distribution of the sample proportion.
32) Determine the standard deviation of the sampling distribution of the sample proportion, to 3 decimal places.
33) True or False? The sampling distribution of the sample proportion is approximately normal.

Homework Answers

Answer #1

Answer 1. 0.8

Answer 2. 0.063

Answer 3. False

Explanation:

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
A random sample of size n = 40 is selected from a binomial distribution with population...
A random sample of size n = 40 is selected from a binomial distribution with population proportion p = 0.25. (a) What will be the approximate shape of the sampling distribution of p̂? approximately normal skewed symmetric Correct: Your answer is correct. (b) What will be the mean and standard deviation (or standard error) of the sampling distribution of p̂? (Round your answers to four decimal places.) mean 0.25 Correct: Your answer is correct. standard deviation 0.0685 Correct: Your answer...
A random sample of size n = 50 is selected from a binomial distribution with population...
A random sample of size n = 50 is selected from a binomial distribution with population proportion p = 0.8. Describe the approximate shape of the sampling distribution of p̂. Calculate the mean and standard deviation (or standard error) of the sampling distribution of p̂. (Round your standard deviation to four decimal places.) mean = standard deviation = Find the probability that the sample proportion p̂ is less than 0.9. (Round your answer to four decimal places.)
A random sample is to be selected from a population that has a proportion of successes...
A random sample is to be selected from a population that has a proportion of successes p = 0.69. Determine the mean and standard deviation of the sampling distribution of p̂ for each of the following sample sizes. (Round your standard deviations to four decimal places.) (a)    n = 30 mean      standard deviation      (b)    n = 40 mean      standard deviation      (c)    n = 50 mean      standard deviation      (d)    n = 70 mean      standard deviation      (e)    n =...
Suppose that a random sample of size 64 is to be selected from a population with...
Suppose that a random sample of size 64 is to be selected from a population with mean 40 and standard deviation 5. (a) What are the mean and standard deviation of the sampling distribution? μx = σx = (b) What is the approximate probability that x will be within 0.4 of the population mean μ? (Round your answer to four decimal places.) P = (c) What is the approximate probability that x will differ from μ by more than 0.8?...
A random sample is to be selected from a population that has a proportion of successes...
A random sample is to be selected from a population that has a proportion of successes p = 0.68. Determine the mean and standard deviation of the sampling distribution of p̂ for each of the following sample sizes. (Round your standard deviations to four decimal places.) (a)    n = 10      standard deviation      (b)    n = 20    standard deviation      (c)    n = 30      standard deviation      (d)    n = 50      standard deviation      (e)    n = 100      standard deviation...
Suppose a simple random sample of size n=200 is obtained from a population whose size is...
Suppose a simple random sample of size n=200 is obtained from a population whose size is N = 20000 and whose population proportion with a specified characteristic is p equals 0.8. ​(a) Describe the sampling distribution of Determine the mean of the sampling distribution Determine the standard deviation of the sampling distribution ​(b) What is the probability of obtaining x= 168or more individuals with the​ characteristic? That​ is, what is P(p greater than or equal to 0.84? ​(c) What is...
A simple random sample of size n=40 is obtained from a population with μ = 50...
A simple random sample of size n=40 is obtained from a population with μ = 50 a n d σ = 4. Does the population distribution need to be normally distributed for the sampling distribution of x ¯ to be approximately normally distributed? Why or why not? What is the mean and standard deviation of the sampling distribution?
Suppose a simple random sample of size n+75 is obtained from a population whose size is...
Suppose a simple random sample of size n+75 is obtained from a population whose size is N=10,000 and whose population proportion with a specified characteristic is p= 0.6 . Complete parts ​(a) through​ (c) below. ​(a) Describe the sampling distribution of p^. Choose the phrase that best describes the shape of the sampling distribution below. A.) Not normal because n<_ 0.05N and np(1-p)<10. B.) Approximately normal because n<_0.05N and np(1-p)>_10. C). Not normal because n<_0.05N and np(1 -p)>_10. D). Approximately...
A random sample of size n = 49 is selected from a population with mean μ...
A random sample of size n = 49 is selected from a population with mean μ = 54 and standard deviation σ = 14. What will be the mean and standard deviation of the sampling distribution of x?
(05.02 LC) The Central Limit Theorem says that when sample size n is taken from any...
(05.02 LC) The Central Limit Theorem says that when sample size n is taken from any population with mean μ and standard deviation σ when n is large, which of the following statements are true? (4 points) I. The distribution of the sample mean is exactly Normal. II. The distribution of the sample mean is approximately Normal. III. The standard deviation is equal to that of the population. IV. The distribution of the population is exactly Normal. a I and...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT