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4 Tutorials that teach Confidence Intervals
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Confidence Intervals

Confidence Intervals

Author: Ryan Backman
Description:

This lesson will introduce constructing confidence intervals.

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Tutorial
Terms to Know
Confidence Interval

An interval that contains likely values for a parameter. We base our confidence interval on our point estimate, and the width of the interval is affected by confidence level and sample size.

Formulas to Know
Confidence Interval of Proportions

C I space equals space p with hat on top space plus-or-minus space z asterisk times space square root of fraction numerator p q over denominator n end fraction end root

Confidence Interval of Samples

C I space equals space top enclose x space plus-or-minus space z asterisk times space bevelled fraction numerator sigma over denominator square root of n end fraction