BlockDesigns - Randomized Complete Block Designs

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D.A. Schaub, Univ. of Florida Randomized Complete Block Designs Modified ANOVA, Tip Tester Example BlockDesigns.ppt
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Blocking out a Nuisance Factor When a source of variation is known  and controllable, we can use a blocking  strategy to isolate its effect It is used extensively in industrial  experimentation
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Example: Metal Tip Tester Assume that we wish to study the effect of  four metal tips to see if they produce different  readings on a hardness testing machine. The test consists of the machine pressing the  tip into a metal test coupon, and from the  depth of the resulting depression, the  hardness of the coupon can be determined
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Setting up the Testing For this test, we are only interested in testing  the difference in the tip types However, the metal coupons may not be of  uniform hardness, and this uncertainty will be  mixed with the tip testing results In other words, the experimental error will  reflect both random error and variability  between the coupons
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This note was uploaded on 08/27/2011 for the course EIN 4905 taught by Professor Staff during the Spring '08 term at University of Florida.

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BlockDesigns - Randomized Complete Block Designs

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