Critical Value z* for z-Scores for Confidence Levels
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This Demonstration explains how a -score (a critical -score) is related to confidence levels and used for the traditional method of significance tests [1]. As you move the slider, the confidence level changes, and in turn the area as well as the -score changes.
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Contributed by: Emily Hou and Esha Madhekar (May 2017)
Open content licensed under CC BY-NC-SA
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This was a project for Advanced Topics in Mathematics II, 2016–2017, Torrey Pines High School, San Diego, CA.
References
[1] Armstrong State University, Department of Mathematics. "Critical Values of ." (Apr 28, 2017) www.math.armstrong.edu/statsonline/5/5.3.2.html.
[1] “InverseCDF” from Wolfram Language Documentation—A Wolfram Web Resource. reference.wolfram.com/language/ref/InverseCDF.html?q=InverseCDF.
[2] “NormalDistribution” from Wolfram Language Documentation—A Wolfram Web Resource. reference.wolfram.com/language/ref/NormalDistribution.html?q=NormalDistribution.
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