Question

If we have a normal population with variance sigma^2 and a random sample of n measurements taken from this population, what probability distribution do we use to test claims about the variance?

Answer 1

The chi-square test for variance is a non-parametric statistical procedure with a chi-square-distributed test statistic that is used for determining whether the variance of a variable obtained from a particular sample has the same size as the known population variance of the same variables.

The Chi square test for single variance has an assumption that the population from which the sample has been is normal.

Therefore, we can use chi square test of variance ro solve the above problem.

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