# 2-24 - Compare means With Control FIT MODEL Group LSMeans...

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Feb 24 2011 Homework for Chapter 6 due Wednesday Will do JMP today. Chapter 5 summary Dealt with the f-test, which as used for full and reduced model. ANOVA. Anova addresses the question: are the means all the same or are they different? Comparison of > 2 means (2 sample pooled) Overall f-test tells us: H 0 : all means are same H a : At least one is different Chapter 6 Addresses the questions: Which means are different? Which are high? Which are low? How to do all possible - μi μj Going to JMP now. LAST HOMEWORK PROBLEM: Sexual Orientation The significance can / might be different. Use Caution. Comparing two groups:

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Unformatted text preview: Compare means / With Control FIT MODEL Group \ LSMeans Contrast Custom test did not get in my head. Read more about it. μ1 μ2 μ3 μ4 μ5 μ1 overall mean = - μ1 μ d1 = - μ2 μ d2 = - μ3 μ d3 = – μ4 μ d4 = - μ5 μ d5 1. “OVERALL” ANOVA H : μ1 = μ2 = … = μk H A : at least one ≠ μi μj 2. Reduced Model H : μspock = μOthers H A : μspock ≠ μOthers Test Full vs. Reduced 3. Post-Hoc Analysis Look at all possible means (multiple comparisons) . Look at α inflation. H : + μ1 μ32 = μ4 Contrasts: +/-Translate from μ1 , …, μ5 into parameter values....
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## This note was uploaded on 10/03/2011 for the course STAT 511 taught by Professor Eggett,d during the Winter '08 term at BYU.

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2-24 - Compare means With Control FIT MODEL Group LSMeans...

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