The Chi-Square Equation


Here's the equation:

Like the table for the t-distribution, the table for the chi-square distribution uses the concept of degrees of freedom along with the significance level to find the critical values within the curve:

Degrees of Freedom = n  - 1

Table of the Chi-Square Distribution

In the following case example, we consider a practical application of variance testing.

Case Example: Variance and Pharmaceuticals


  

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