Click here for a more complete video explanation
Walker Runn, quality manager for Color in a Can paint manufacturing company, wants to compare outputs of three of the company's facilities. In addition, he's interested in comparisons of day shift and night shift outputs. He gathers this data set:
Entering this data into DOEpack
EZ, a program that supports analysis of variance (ANOVA),
he produces the following chart:
Walker Runn stares thoughtfully and cluelessly at
the printout, then decides to enter it into the PowerPoint presentation
he is preparing for the plant manager. Of course, this presentation
generates questions, notably from Dan Druff, a vice president for
the color processing. "What is the significance of a p-value of
<0.001 for shift?" he asks.
Walker Runn says this is the probability that the
day shift and night shift output is basically the same.
Is Walker on target with his analysis in this case?
Copyright 2006 PQ Systems.
Please direct questions or problems regarding this web site to the Webmaster.