10 - STAT 350 Fall 2008 Homework #10 - Solution covers...

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STAT 350 – Fall 2008 Homework #10 - Solution covers through Lecture #15 Text Exercises Chapter 9 problems #36 1 , 38(a,b) 1,2 Chapter 10 problems #8 1,2 1 be sure to give a full ANOVA table to accompany your answer! 2 you may do the analysis in SAS 9.36 Source df SS MS F p Assessor 2 11.7 5.85 1.82813 0.221882 House (block) 4 113.5 28.375 8.86719 0.004892 Error 8 25.6 3.2 Total 14 150.8 a. There is no significant difference among the assessors ( p -value = 0.221882) b. The house effect was significant, thus it was warranted as a blocking factor. Recall that a Completely Randomized Design (CRD) and a 1-way ANOVA can be used when the experimental units are HOMOGENEOUS (not variable), the more variable the experimental units are, the more important it is to use blocks. Had the effect of "house" not been significant (p > 0.05), that would not mean blocking is definitely NOT warranted. Homework #10 - Solution Page 1 of 4
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9.38 Source df SS MS F p Grade 2 90754.66667 45377.33333 393.45 <.0001
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This note was uploaded on 02/23/2009 for the course STAT 350 taught by Professor Staff during the Fall '08 term at Purdue University-West Lafayette.

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10 - STAT 350 Fall 2008 Homework #10 - Solution covers...

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