A research project studied the physical properties of wood materials constructed by bonding together small flakes of
Question:
A research project studied the physical properties of wood materials constructed by bonding together small flakes of wood. The two factors considered were the size of the flakes and species of tree. The sizes of the flakes were S1: 0.15 inches by 2 inches and S2: 0.25 inches by 2 inches, and the species of tree used were aspen, birch, and maple. For each combination of flake size and tree species, three samples of wood material were constructed. For each sample, the physical property measured was the tension modulus of elasticity in the direction perpendicular to the alignment of the flakes, in pounds per square inch (psi). The table below gives the means for the different size-species groups:
What is the value of the sum of squares for error, SSE?
A.1021.8
B.20,853.5
C.14,512.0
D.147,144.0
In the ANOVA table, the test for the main effect of size has a P-value of 0.613.What does this indicate?
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Chemistry The Central Science
ISBN: 978-0321696724
12th edition
Authors: Theodore Brown, Eugene LeMay, Bruce Bursten, Catherine Murphy, Patrick Woodward