E WORKSHEET 1 General Linear Model: acidity versus NaOH level, coal Method Factor coding (-1,0,+1) Factor Information Fa

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E Worksheet 1 General Linear Model Acidity Versus Naoh Level Coal Method Factor Coding 1 0 1 Factor Information Fa 1 (413.3 KiB) Viewed 18 times

E Worksheet 1 General Linear Model Acidity Versus Naoh Level Coal Method Factor Coding 1 0 1 Factor Information Fa 2 (25.73 KiB) Viewed 18 times

E Worksheet 1 General Linear Model Acidity Versus Naoh Level Coal Method Factor Coding 1 0 1 Factor Information Fa 3 (23.67 KiB) Viewed 18 times

E WORKSHEET 1 General Linear Model: acidity versus NaOH level, coal Method Factor coding (-1,0,+1) Factor Information Factor Type Levels Values NaOH level Fixed 3 0.404N, 0.626N, 0.786N coal Fixed 3 Maddingley, Morwell, Yallourn Analysis of Variance Source NaOH level coal NaOH level*coal Error Total DF Adj ss Adj MS F-Value 2 0.11023 0.055117 3.39 2 0.96640 0.483200 29.73 4 0.01907 0.004767 0.29 9 0.14630 0.016256 17 1.24200 P-Value 0.080 0.000 0.875 Model Summary S R-sq R-sq(adj) R-sq(pred) 0.127497 88.22% 77.75% 52.88% Regression Equation acidity 8.3000 -0.0017 NaOH level_0.404N -0.0967 NaOH level_0.626N +0.0950 NaOH level_0.786N -0.2533 coal_Maddingley - 0.0533 coal_Morwell +0.3067 coal_Yallourn +0.0017 NaOH level*coal_0.404N Maddingley -0.0283 NaOH level*coal_0.404N Morwell +0.0267 NaOH level*coal_0.404N Yallourn +0.0400 NaOH level*coal_0.626N Maddingley -0.0300 NaOH level*coal_0.626N Morwell -0.0100 NaOH level*coal_0.626N Yallourn - 0.0417 NaOH level*coal_0.786N Maddingley +0.0583 NaOH level*coal_0.786N Morwell - 0.0167 NaOH level*coal_0.786N Yallourn +

At the a = 0.01 level of significance, is there an interaction between coal type and NaOH concentration? No Yes Can't tell from available data

= At the a 0.01 level of significance, is there a main effect from NaOH concentration? No Yes Can't tell from available data