Industrial Statistics with Minitab

2.4 Histograms for Various Data Sets

Using the option Calculator located within the Calc menu, we can create the column named ‘Increment’ that defines the difference between the final pulse rate and the initial pulse rate as follow.

Calc > Calculator

A comparison of pulse increments, depending on whether the student has run or not, can be done through their histograms, as follows.

Graph > Histogram: with Outline and Groups

Putting ‘Increment’ as the variable to represent and ‘ran’ as a categorical variable to form the groups, we obtain (the display shows a different color for each histogram):

Another option with a more clear result is Graph > Histogram: Simple.

Graph > Histogram: Simple

To have a list of all available graphs and worksheets click on Window in the main menu. All worksheets and graphs created and not deleted appear at the end.