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hw7_sol - 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19...

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 A B C D E F G H Exercise 12-2 C 2 F 6 Flow 125 160 200 Etch 2.7 4.9 4.6 Uniformity 4.6 4.6 3.4 2.6 5.0 2.9 3.0 4.2 3.5 3.2 3.6 4.1 3.8 4.2 5.1 Anova: Single Factor SUMMARY Groups Count Sum Average Variance 125 6 19.9 3.316667 0.577667 160 6 26.5 4.416667 0.273667 200 6 23.6 3.933333 0.674667 P-value is near 0.05, marginally significant ANOVA Source SS df MS F P-value F crit Treatment 3.647778 2 1.823889 3.585627 0.053365 3.682317 Error 7.63 15 0.508667 Total 11.27778 17 C 2 F 6 Etch Sorted Flow Uniformity Residuals Residuals Rank Fhat zscore 125 2.7 -0.617 -1.033 1 0.053 -1.62 125 4.6 1.283 -0.817 2 0.105 -1.25 125 2.6 -0.717 -0.717 3 0.158 -1.00 125 3.0 -0.317 -0.617 4 0.211 -0.80 125 3.2 -0.117 -0.533 5 0.263 -0.63 125 3.8 0.483 -0.433 6 0.316 -0.48 160 4.9 0.483 -0.317 7 0.368 -0.34 160 4.6 0.183 -0.217 8 0.421 -0.20 160 5.0 0.583 -0.217 9 0.474 -0.07 160 4.2 -0.217 -0.117 10 0.526 0.07 160 3.6 -0.817 0.167 11 0.579 0.20 160 4.2 -0.217 0.183 12 0.632 0.34 200 4.6 0.667 0.483 13 0.684 0.48 200 3.4 -0.533 0.483 14 0.737 0.63 200 2.9 -1.033 0.583 15 0.789 0.80 200 3.5 -0.433 0.667 16 0.842 1.00 200 4.1 0.167 1.167 17 0.895 1.25 200 5.1 1.167 1.283 18 0.947 1.62 Response vs. Factor Level plot shows overlapping groups Residual Plot shows similar vertical spread level-to-level Normal Probability Plots shows approximately straight line
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