Light output data

An electronics design engineer studies the effect of operating temperature and three types of face-plate glass on the light output of an oscilloscope tube.

You can use this data to demonstrate Fit General Linear Model, a clustered or stacked Bar Chart of A function of a variable, and other analyses that compare measurement data for groups that have more than one level.

Worksheet column Description
LightOutput The light output of the oscilloscope tube
Temperature The temperature at which the light output was measured: 100, 125, or 150
GlassType The glass type used in the oscilloscope tube: 1, 2, or 3


The example and data are from D.C. Montgomery (2001). Design and Analysis of Experiments. Fifth Edition. John Wiley & Sons, page 213.

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