Mathematics, 09.11.2019 02:31 marquion
Asimple 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?
Answers: 3
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Asimple random sample with n=54 provided a sample mean of 22.5 and a sample standard deviation of 4....
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