# Testing of population variance of Normal Population

A random sample of 51 observations was selected from a normally distributed population. The sample mean was xbar = 88.6, and the sample variance was s2 = 38.2. Does the sample show sufficient reason to conclude that the population standard deviation is not equal to 8 at the 0.05 level of significance? Use the p-value method.

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Sufficient reason

A random sample of 51 observations was selected from a normally distributed population. The sample mean was xbar = 88.6, and the sample variance was s2 = 38.2. Does the sample show sufficient reason to conclude ...

#### Solution Summary

Testing of population variance of Normal Population under 5 step approach is discussed here. Excel template for each problem is also included. This template can be used to obtain the answers of similar problems.