Question

A normal population has a variance of 15. If samples of size 5 are drawn from...

A normal population has a variance of 15. If samples of size 5 are drawn from this population, what percentage can be expected to have variances (a) less than 10, (b) more than 20, (c) between 5 and 10? please show steps to solve.

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
Suppose samples of size 100 are drawn randomly from a population that has a mean of...
Suppose samples of size 100 are drawn randomly from a population that has a mean of 20 and a standard deviation of 5. What is the probability of observing a sample mean equal to or greater than 20.5? 0.1587 0.4192 0.9192 0.1634 0.8384
How many different samples of size 2 can be drawn from a finite population of size...
How many different samples of size 2 can be drawn from a finite population of size a) 4 b)6 c) 12 d) 18 e) 400 please show work
Please Show Work 1. A sample size 5 will be drawn from a normal population with...
Please Show Work 1. A sample size 5 will be drawn from a normal population with mean 60 and standard deviation 12. a. Is it appropriate to use the normal distribution to find probability for ?̅? Explain why? b. If appropriate find the probability that ?̅will be between 50 and 70. c. If appropriate find the 80th percentile of ?̅?
andom samples of size n = 2 are drawn from a finite population that consists of...
andom samples of size n = 2 are drawn from a finite population that consists of the numbers 2,4,6, and 8. a) calculate the mean and the standard deviation of this population. b) list the six possible random samples of size n = 2 that can be drawn from this population and calculate their means. c) Use the results of part (b) to construct the sampling distribution of the mean for random samples of size n =2 from the given...
1. A sample size of 49 drawn from a population with a mean of 36 and...
1. A sample size of 49 drawn from a population with a mean of 36 and a standard deviation of 15 for the size of an English class. What is the probability the class will have greater than 40 a. .9693 b. .4693 c. .0808 d. .0307 2. A sample size of 49 drawn from a population with a mean of 36 and a standard deviation of 15 for the size of an English class. What is the probability the...
If random samples of the given size are drawn from a population with the given proportion,...
If random samples of the given size are drawn from a population with the given proportion, find the standard error of the distribution of sample proportions. a) Samples of size 35 from a population with proportion 0.37. b) Samples of size 500 from a population with proportion 0.75.
1. Random samples of size 15 are repeatedly drawn from a distribution that can be approximated...
1. Random samples of size 15 are repeatedly drawn from a distribution that can be approximated by a normal distribution with a mean of 65 and a standard deviation of 17. Since the values in the sample are random variables, the mean associated to those samples, ?̅, is also a random variable. a. What is the expected mean of the distribution of ?̅? b. What is the expected standard deviation of the distribution of ?̅? Hi Chegg Answerer, could you,...
A random sample of size is taken from a population that has a variance of 49....
A random sample of size is taken from a population that has a variance of 49. The sample mean is 90.4, n = 9. Construct a 80% confidence interval for μ. Please show steps
Consider random samples of size 86 drawn from population A with proportion 0.47 and random samples...
Consider random samples of size 86 drawn from population A with proportion 0.47 and random samples of size 64 drawn from population B with proportion 0.19 . Find the standard error of the distribution of differences in sample proportions, p^A-p^B. Round your answer for the standard error to three decimal places.
a) Consider random samples of size 56 drawn from population A with proportion 0.77 and random...
a) Consider random samples of size 56 drawn from population A with proportion 0.77 and random samples of size 78 drawn from population B with proportion 0.67 . Find the standard error of the distribution of differences in sample proportions, p^A-p^B. Round your answer for the standard error to three decimal places. standard error = ___________________ b) Consider random samples of size 470 drawn from population A with proportion 0.55 and random samples of size 210 drawn from population B...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT