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Estimation and Confidence Intervals


After completing this chapter, you will be able to:
  1. Define a point estimate.
  2. Define level of confidence
  3. Construct a confidence interval for the population mean when the population standard deviation is known.
  4. Construct a confidence interval for a population mean when the population standard deviation is unknown.
  5. Construct a confidence interval for a population proportion.
  6. Determine the sample size for attribute and variable sampling.








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