Question

An engineer samples from a distribution with mean equal to 40 and standard deviation equal to...

An engineer samples from a distribution with mean equal to 40 and standard deviation equal to 16. If she takes 100 samples, what is the distribution of X-bar? Be sure to state the distribution name and its mean and standard deviation.

Homework Answers

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
Let x be a normal random variable with mean equal to 40 and standard deviation equal...
Let x be a normal random variable with mean equal to 40 and standard deviation equal to 5 a) P(x>55)=? b) P(x<49)=?
Suppose x has a distribution with a mean of 80 and a standard deviation of 45....
Suppose x has a distribution with a mean of 80 and a standard deviation of 45. Random samples of size n = 36 are drawn. (a) Describe the  distribution. has a binomial distribution. has an unknown distribution.     has an approximately normal distribution. has a Poisson distribution. has a normal distribution. has a geometric distribution. Compute the mean and standard deviation of the distribution. (For each answer, enter a number.) = mu sub x bar = = sigma sub x bar = (b)...
Suppose x has a distribution with a mean of 90 and a standard deviation of 20....
Suppose x has a distribution with a mean of 90 and a standard deviation of 20. Random samples of size n = 64 are drawn. (a) Describe the distribution. has an approximately normal distribution. has a normal distribution. has a geometric distribution. has a binomial distribution. has an unknown distribution. has a Poisson distribution. Compute the mean and standard deviation of the distribution. (For each answer, enter a number.) = mu sub x bar = = sigma sub x bar...
a. What is the standard error of a sampling distribution? (out of the following) the mean,...
a. What is the standard error of a sampling distribution? (out of the following) the mean, the probability, the bias, the standard deviation, or the variance b. What is the standard deviation of a sampling distribution called? (out of the following) the spread, the variance, the standard error, the mean, the standard variance c. List two unbiased estimators and their corresponding parameters. (Select all that apply out of the following.) μ is an unbiased estimator for x-bar, p is an...
A normal distribution has a mean equal to 48. What is the standard deviation of this...
A normal distribution has a mean equal to 48. What is the standard deviation of this normal distribution if 2.5% of the proportion under the curve lies to the right of x = 61.72? (Round your answer to two decimal places.)
1. What is the first quartile of a normal distribution with mean 40, and standard deviation...
1. What is the first quartile of a normal distribution with mean 40, and standard deviation 7? Round to three decimal places. 2. What is the third quartile of a normal distribution with mean 40, and standard deviation 7? Round to three decimal places. 3. What is the IQR of a normal distribution with mean 40, and standard deviation 7? Round to three decimal places.
A distribution with a mean of µ = 73 and a standard deviation of σ =...
A distribution with a mean of µ = 73 and a standard deviation of σ = 8 is being transformed into a standardized distribution of µ = 100 and σ = 16. Find the new, standardized score for each of the following values from the original population (plot each point on a graph): a. X = 80 b. X = 70 c. X = 65 d. X = 87
The mean distance freshman students live from campus is 135.0 miles with a standard deviation of...
The mean distance freshman students live from campus is 135.0 miles with a standard deviation of 13.0 miles. Random samples of 34 freshmen are taken from the freshman class. What is the mean of the sampling distribution of the sample means? (round to 1 decimal place). mu subscript x with bar on top end subscript = What is the standard error of the mean? (round to 2 decimal places). sigma subscript x with bar on top end subscript = What...
A population has a mean μ=40 and a standard deviation σ=4. What is the standard deviation...
A population has a mean μ=40 and a standard deviation σ=4. What is the standard deviation of the sampling distribution of the sample means if the sample size is n=16?
Suppose x has a distribution with a mean of 20 and a standard deviation of 3....
Suppose x has a distribution with a mean of 20 and a standard deviation of 3. Random samples of size n = 36 are drawn. Is the sampling distribution of x normal? How do you know? What is the mean and the standard deviation of the sampling distribution of x? Find the z score corresponding to x = 19. Find P (x < 19). Would if be unusual for a random sample of size 36 from the x distribution to...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT