To perform this test, select
.For example, you receive a shipment of unprocessed lumber and you want to assess whether the moisture content is too variable.
H_{0}: σ = σ_{0} | The population standard deviation (σ) equals the hypothesized standard deviation (σ_{0}). |
H_{1}: σ ≠ σ_{0} | The population standard deviation (σ) differs from the hypothesized standard deviation (σ_{0}). |
H_{1}: σ > σ_{0} | The population standard deviation (σ) is greater than the hypothesized standard deviation (σ_{0}). |
H_{1}: σ < σ_{0} | The population standard deviation (σ) is less than the hypothesized standard deviation (σ_{0}). |
If you are testing the variance, substitute variance (σ^{2}) for standard deviation (σ) in the hypotheses.