Select the method or formula of your choice.

The sum of squares (SS) is the sum of squared distances, and is a measure of the variability that is from different sources.

- SS
_{Operator} - SS
_{Part (Operator)} - SS
_{Repeatability} - SS
_{Total} - SS
_{Total}= SS_{Operator}+ SS_{Part (Operator)}+ SS_{Repeatability}

The degrees of freedom (DF) for each SS (sums of squares). In general, DF measures how much information is available to calculate each SS.

- DF
_{Operator} - DF
_{Part (Operator)} - DF
_{Repeatability} - DF
_{Total}

The mean squares (MS) is the variability in the data from different sources. MS accounts for the fact that different sources have different numbers of levels or possible values.

- MS
_{Operator} - MS Part (Operator)
- MS Repeatability

The F-statistic is used to determine whether the effects of Operator or Part (Operator) significantly impact the measurement.

- F
_{Operator} - F
_{Part(Operator)}

The p-value is the probability of obtaining a test statistic (such as the F-statistic) that is at least as extreme as the value that is calculated from the sample, if the null hypothesis is true.