Complete the following steps to specify the columns of data that you want to analyze.
In Responses, enter the columns of numeric data that you want to explain or predict with the factors. If you enter more than one response, Minitab performs a separate analysis for each response. The response is also called the Y variable.
In Random factors, enter any columns that contain random factors. Random factors have levels that are selected at random; whereas fixed factors have levels that are controlled by the experimenter.
In this worksheet, Strength is the response and contains fiber strength measurements. Machine and Operator are random factors and may explain differences in fiber strength. The design is balanced because all combinations of operator and machine have the same number of observations. Note that not all of the observations are visible in this abbreviated worksheet.