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Estimation and Confidence Intervals


When you have completed this chapter, you will be able to:
LO 9-1Define point estimate.
LO 9-2Define confidence interval.
LO 9-3Compute a confidence interval for the population mean when the population standard deviation is known.
LO 9-4Compute a confidence interval for the population mean when the population standard deviation is unknown.
LO 9-5Compute a confidence interval for a population proportion.
LO 9-6Calculate the required sample size to estimate a population proportion or population mean.










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