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MATH 1401: Elementary Statistics (Minitab and Excel)

Confidence Intervals (Z-interval) with Population Standard Deviation

Confidence Intervals (Z-interval) with Population Standard Deviation

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. 

Materials to Help You Learn the Material:

Videos

Video Title
Confidence Intervals Introduction
Example of Confidence Interval
Confidence Interval with Population Standard Deviation
Alpha, Confidence Intervals, and Two Tails
Example 1 for Zinterval with Sample Statistics
Example 2 for Zinterval with Sample Data
Sample Sizes with Population Standard Deviation
Flow Chart for One Mean Zinterval
Practice Problem 1 for Zinterval with Sample Statistics
Practice Problem 2 for Zinterval with Sample Data
Practice Problem 3 for Sample Size and Population Standard Deviation
One mean Zinterval with Excel
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