mont4e_sm_ch14_sec03 - 14-1 CHAPTER 14 Section 14-314-1a)...

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Unformatted text preview: 14-1 CHAPTER 14 Section 14-314-1a) 1. :21==Honeleast at :1iH2. :321===Honeleast at :1jHb)Analysis of Variance for current Source DF SS MS F P glasstyp 1 14450.0 14450.0 273.79 0.000 phostype 2 933.3 466.7 8.84 0.004 glasstyp*phostype 2 133.3 66.7 1.26 0.318 Error 12 633.3 52.8 Total 17 16150.0 Main effects are significant, the interaction is not significant. Glass type 1 and phosphor type 2 lead to the highest mean current (brightness). c) There appears to be more slightly variability at phosphor type 2 and glass type 2. The normal plot of the residuals shows that the assumption of normality is reasonable. 32115105-5-10phostypeResidualResiduals Versus phostype(response is curent)2.01.51.015105-5-10glasstypResidualResiduals Versus glasstyp(response is cur ent)15105-5-1021-1-2Normal ScoreResidualNormal Probability Plot of the Residuals(response is current)14-2 30029028027026025024023022015105-5-10Fitted ValueResidualResiduals Versus the Fitted Values(response is cur ent)14-2a) :21==Honeleast at :1jHAnalysis of variance for SURFACE FINISH Source DF SS MS F P paint 1 355.6 355.6 1.90 0.193 drying 2 27.4 13.7 0.07 0.930 paint*drying 2 1878.8 939.4 5.03 0.026 Error 12 2242.7 186.9 Total 17 4504.4 Only the interaction between the paint and drying time is significant. b)The residual plots appear reasonable. 3025202010-10-20dryingResidualResiduals Versus drying(response is surf ini)2.01.51.02010-10-20paintResidualResiduals Versus paint(response is surf ini))908070602010-10-20Fited ValueResidualResiduals Versus the Fitted Values(response is surf ini)14-3 14-3 a) :321===Honeleast at :1jH:321===Honeleast at :1jHAnalysis of Variance for life Source DF SS MS F P material 2 10683.7 5341.9 7.91 0.002 temperat 2 39118.7 19559.4 28.97 0.000 material*temperat 4 9613.8 2403.4 3.56 0.019 Error 27 18230.7 675.2 Total 35 77647.0 Main factors and interaction are all significant. b) The mean life for material 2 is the highest at temperature level 1, in the middle at temperature level 2 and the lowest at temperature level 3. This shows that there is an interaction. 12312332115010050temperatmaterialMeanInteraction Plot - Means for lifec) There appears to be slightly more variability at temperature 1 and material 1. The normal probability plot shows that the assumption of normality is reasonable. 50-5021-1-2Normal ScoreResidualNormal Probability Plot of the Residuals(response is life)14-4 32150-50temperatResidualResidualsVersustemperat(responseis life)32150-50materialResidualResidualsVersusmaterial(responseis life)1501005050-50Fitted ValueResidualResiduals Versus the Fitted Values(response is life)14-4a) 1. :21==Honeleast at :1jH2. :321===Honeleast at :1jHb)Analysis of Variance for DENSITY Source DF SS MS F P furnacep 1 7160 7160 16.00 0.002 temperat 2 945342 472671 1056.12 0.000 furnacep*temperat 2 818 409 0.91 0.427 Error 12 5371 448 Total 17 958691 Reject Hfor both main effects and conclude that both factors are significant. for both main effects and conclude that both factors are significant....
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This note was uploaded on 10/12/2009 for the course IND E 315 taught by Professor Kailashkapur during the Spring '09 term at University of Washington.

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mont4e_sm_ch14_sec03 - 14-1 CHAPTER 14 Section 14-314-1a)...

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