CHAPTER14
Confidence Intervals
In This Chapter
- Interpreting the meaning of a confidence interval
- Calculating the confidence interval for the mean when the population standard deviation is known and when it is unknown
- Introducing the Student’s t-distribution
- Calculating the confidence interval for the proportion
- Determining sample sizes to attain a specific margin of error
Now that we have learned how to collect a random sample and how sample means and sample proportions behave under certain conditions, we are ready to put those samples to work using confidence intervals.
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