1 Varianceoverview how to example data see also
1 VarianceStat > Basic Statistics > 1 Variance
This procedure calculates confidence intervals for the standard deviation and variance of a population, and performs a hypothesis test to determine whether the population variance equals a specified value.
If you enter summary values, Minitab analyzes one sample at a time and cannot calculate the Bonett method for use with nonnormal data.
One or more samples, each in a column: Choose if you entered raw data into columns and enter the column(s) that contain the data. If you enter multiple columns, Minitab performs separate 1-sample analyses on each column.
Sample standard deviation: Choose if you have summary values for a sample's size and standard deviation.
Sample size: Enter the sample size.
Sample standard deviation: Enter the sample's standard deviation.
Sample variance: Choose if you have summary values for a sample's size and variance.
Sample size: Enter the sample size.
Sample variance: Enter the sample's variance.
Perform hypothesis test: Check to perform the hypothesis test that the population standard deviation or variance equals a specified value.
Hypothesized standard deviation: Choose to test the standard deviation.
Hypothesized variance: Choose to test the variance.
Value: Enter the hypothesized value for standard deviation or variance.