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MATH 2200: Elementary Statistics

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Confidence Intervals
(Z-interval)


This sub-module will introduce you to confidence intervals.The most important point of this lesson is showing how to make confidence intervals when the population standard deviation is known.

These power points go with the videos below:

 

Part A: Introduction
Part B: Example Confidence Interval
Part C: Known Standard Deviation
Part D: Alpha CL & Two Tails
Part E: CI Example
Part F: EBM & Sample Mean
Part G: Z-Interval Example 1
Part H: Flow Chart


Now, it is your turn to practice. Here are a few practice problems to help learn the concepts. 

Just click on the link to get started:
Module Three Practice Problems: Z-Intervals

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