Statistical Inference

The One-Sample Variance Procedures

Please select the aspect of the One-Sample Variance Procedure you would like practice with:

The One-Sample Variance-Procedure is used to learn about the variance of a population. Using these procedures, you can calculate a confidence interval or test a hypothesis regarding σ². In order to use these procedures, the following assumption must be met:

This assumption is in addition to the usual two assumptions that the sample is representative of the target population and that the sample values are independent.

If any of these assumptions are not met, then this is not the appropriate procedure to use. If the data are not Normally distributed, this is definitely not a good procedure to use.