# Question

Answer true or false to each statement concerning a confidence interval for a population mean. Give reasons for your answers.

a. The margin of error can be determined if you know only the confidence level.

b. The confidence level can be determined if you know only the margin of error.

c. The margin of error can be determined if you know only the confidence level, population standard deviation, and sample size.

d. The confidence level can be determined if you know only the margin of error, population standard deviation, and sample size.

a. The margin of error can be determined if you know only the confidence level.

b. The confidence level can be determined if you know only the margin of error.

c. The margin of error can be determined if you know only the confidence level, population standard deviation, and sample size.

d. The confidence level can be determined if you know only the margin of error, population standard deviation, and sample size.

## Answer to relevant Questions

Formula 8.1 provides a method for computing the sample size required to obtain a confidence interval with a specified confidence level and margin of error. The number resulting from the formula should be rounded up to the ...In Exercise 8.35, you found a 95% confidence interval of 18.8 months to 48.0 months for the mean duration of imprisonment, μ, of all East German political prisoners with chronic PTSD. a. Determine the margin of error, E. b. ...Suppose that a simple random sample is taken from a normal population having a standard deviation of 10 for the purpose of obtaining a 95% confidence interval for the mean of the population. a. If the sample size is 4, ...For a t-curve with df = 17, use Table IV to find each t-value. a. t0.05 b. t0.025 c. t0.005 x-bar = 50, n = 16, s = 5, confidence level = 99% We have provided a sample mean, sample size, sample standard deviation, and confidence level. In each case, use the one-mean t-interval procedure to find a confidence ...Post your question

0