10.3 Deriving a Confidence Interval for a Variance (Assuming a Normally Distributed Population)

I derive the appropriate formula for a confidence interval for a population variance (when we are sampling from a normally distributed population). I do not do any calculations or look at any examples in this video, I simply derive the appropriate confidence interval formula.

I work through an example at http://youtu.be/tsLGbpu_NPk

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