A simple random sample with n=56 provided a sample mean of n= 23.5 and a sample...

A simple random sample with n=56 provided a sample mean of n= 23.5 and a sample standard deviation of 4.3.

a. Develop a confidence interval for the population mean (to 1 decimal).

____,___

b. Develop a confidence interval for the population mean (to 1 decimal).

___,___

c. Develop a confidence interval for the population mean (to 1 decimal).

___, ___

d. What happens to the margin of error and the confidence interval as the confidence level is increased?

- Select your answer -(They increase/They decrease/They stay the same/It cannot be determined from the given data/The margin of error increases and the confidence interval becomes narrower/The margin of error decreases and the confidence interval becomes wider) .

Expert Solution

orchestra answered 1 year ago

A simple random sample with n=56 provided a sample mean of 23.5 and a sample standard...

A simple random sample with n=56 provided a sample mean of 23.5 and a sample standard deviation of 4.2 Develop a 90 % confidence interval for the population mean (to 1 decimal). Develop a 95 % confidence interval for the population mean (to 1 decimal) Develop a 99 % confidence interval for the population mean (to 1 decimal).

A simple random sample with n = 56 provided a sample mean of 29.5 and a...

A simple random sample with n = 56 provided a sample mean of 29.5 and a sample standard deviation of 4.4. A. Develop a 90% confidence interval for the population mean. B. Develop a 95% confidence interval for the population mean. C. Develop a 99% confidence interval for the population mean.

A simple random sample with n=56 provided a sample mean of 24 and a sample standard...

A simple random sample with n=56 provided a sample mean of 24 and a sample standard deviation of 4.6. a. Develop a 90% confidence interval for the population mean (to 1 decimal). , b. Develop a 95%confidence interval for the population mean (to 1 decimal). , c. Develop a 99% confidence interval for the population mean (to 1 decimal). , d. What happens to the margin of error and the confidence interval as the confidence level is increased?

A simple random sample with n=56 provided a sample mean of 22.5 and a sample standard...

A simple random sample with n=56 provided a sample mean of 22.5 and a sample standard deviation of 4.4 a.Develop a 90% confidence interval for the populationmean. b.Develop a 95% confidence interval for the populationmean. c.Develop a 99% confidence interval for the populationmean. d.What happens to the margin of error and the confidenceinterval as the confidence level is increased?

A simple random sample with n = 56 provided a sample mean of 26.5 and a sample standard deviation of 4.4.

A simple random sample with n = 56 provided a sample mean of 26.5 and a sample standard deviation of 4.4. (Round your answers to one decimal place.) (a) Develop a 90% confidence interval for the population mean. to (b) Develop a 95% confidence interval for the population mean. to (c) Develop a 99% confidence interval for the population mean. to (d) What happens to the margin of error and the confidence interval as the confidence level is increased?...

A simple random sample of n = 54 provided a sample mean of 22.5 and a...

A simple random sample of n = 54 provided a sample mean of 22.5 and a sample standard deviation of 4.4. Develop a 90% confidence interval for the population mean. (Round to two decimal places) __________and__________ Develop a 95% confidence interval for the population mean. (Round to two decimal places) __________and__________ Develop a 99% confidence interval for the population mean. (Round to two decimal places) __________and__________

A simple random sample with n = 55 provided a sample mean of 24.5 and a...

A simple random sample with n = 55 provided a sample mean of 24.5 and a sample standard deviation of 4.4. (Round your answers to one decimal place.) A. Develop a 90% confidence interval for the population mean. B. Develop a 95% confidence interval for the population mean. C. Develop a 99% confidence interval for the population mean.

2. A simple random sample with n = 54 provided a sample mean of 22.5 and...

2. A simple random sample with n = 54 provided a sample mean of 22.5 and a sample standard deviation of 4.4. a. Develop a 90% confidence interval for the population mean. b. Develop a 95% confidence interval for the population mean. c. Develop a 99% confidence interval for the population mean. d. What happens to the margin of error and the confidence interval as the confidence level is increased?

A simple random sample with n=54 provided a sample mean of 21.0 and a sample standard...

A simple random sample with n=54 provided a sample mean of 21.0 and a sample standard deviation of 4.7 . a. Develop a 90% confidence interval for the population mean (to 1 decimal). , b. Develop a 95% confidence interval for the population mean (to 1 decimal). , c. Develop a 99% confidence interval for the population mean (to 1 decimal). , d. What happens to the margin of error and the confidence interval as the confidence level is increased?...

A simple random sample with n=50 provided a sample mean of 2.3 and a sample standard...

A simple random sample with n=50 provided a sample mean of 2.3 and a sample standard deviation of 4.7. a. Develop a 90% confidence interval for the population mean (to 2 decimals). , b. Develop a 95% confidence interval for the population mean (to 2 decimals). , c. Develop a 99% confidence interval for the population mean (to 2 decimals). ,

Question