Question

A random sample of size 16 valves from a normal population showed a mean of 53...

A random sample of size 16 valves from a normal population showed a mean of 53 and a sum of squares of deviation from the mean equals to 150. Obtain 95% confidence limits of the mean of population.

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
A random sample of size 16 is selected from a normal population with a mean of...
A random sample of size 16 is selected from a normal population with a mean of 173 and a standard deviation of 12. What is the probability that the sample mean will exceed 175? Give answer to two decimal places.
A random sample of size 16 taken from a normally distributed population revealed a sample mean...
A random sample of size 16 taken from a normally distributed population revealed a sample mean of 50 and a sample variance of 36. The upper limit of a 95% confidence interval for the population mean would equal: a)57.81 b)53.20 c)69.90 d)75.31
A simple random sample size of 40 is drawn from a population. The sample mean is...
A simple random sample size of 40 is drawn from a population. The sample mean is found to be x overbar equals 120.1x=120.1 and the sample standard deviation is found to be s equals 12.8s=12.8. Construct a​ 99% confidence interval for the population mean.
A random sample of 20 houses selected from a city showed that the mean size of...
A random sample of 20 houses selected from a city showed that the mean size of these houses is 1850 square feet with a standard deviation of 320 square feet. Assume that the sizes of all houses in this city have an approximate normal distribution. The 95% confidence interval for the variance of all house sizes in this city is:
A simple random sample of size nequals17 is drawn from a population that is normally distributed....
A simple random sample of size nequals17 is drawn from a population that is normally distributed. The sample mean is found to be x overbar equals 61 and the sample standard deviation is found to be sequals11. Construct a 95​% confidence interval about the population mean. The 95​% confidence interval is ​( nothing​, nothing​). ​(Round to two decimal places as​ needed.)
A simple random sample of size n equals 40 is drawn from a population. The sample...
A simple random sample of size n equals 40 is drawn from a population. The sample mean is found to be x overbar equals 120.2 and the sample standard deviation is found to be s equals 13.2. Construct a​ 99% confidence interval for the population mean.
A random sample of 100 credit sales in a department store showed a sample mean of...
A random sample of 100 credit sales in a department store showed a sample mean of $64. The population standard deviation is known to be $16. A) Provide a 99% confidence interval for the population mean. B) Provide a 95% confidence interval for the population mean. C) Describe the effect of a lower confidence level on the margin of error.
A sample of 16 elements was extracted from a normal population. This sample had a mean...
A sample of 16 elements was extracted from a normal population. This sample had a mean of 48 units and a standard deviation of 4 units. A second sample of 22 elements was extracted from another normal population. This second sample had a mean of 52 units and a standard deviation of 10 units. Since the variance in the first population is different from the variance in the second population, test the claim at 95% confidence that the mean of...
A random sample of 16 drawn from a normal population yields a mean of 991 with...
A random sample of 16 drawn from a normal population yields a mean of 991 with a standard deviation of 15. Does this sample indicate that the mean is now different from the establish value of 1000? Use σ= .01.
A simple random sample is drawn from a population for estimating the mean of the population....
A simple random sample is drawn from a population for estimating the mean of the population. The mean from the sample is 25.6 and the sample size is 60.\ 1. If the population standard deviation is known to be 10.5, construct a 95% confidence interval for the population mean. 2. If the population standard deviation is not known but the sample standard deviation is calculated to be 11.5, construct a 95% confidence interval for the population mean. 3. Do we...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT