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QuantitativeMethodsModelSelectionI:principlesofmodelchoiceanddesignedexperiments
ModelSelectionI:principlesofmodelchoiceTheproblemofmodelchoice
ModelSelectionI:principlesofmodelchoiceTheproblemofmodelchoice
ModelSelectionI:principlesofmodelchoiceTheproblemofmodelchoiceVaryingaVaryingbY=a+bX
ModelSelectionI:principlesofmodelchoiceTheproblemofmodelchoiceVaryingcY=a+bX+cX2
ModelSelectionI:principlesofmodelchoiceTheproblemofmodelchoiceVaryingcVaryingd,PartIVaryingd,PartIIY=a+bX+cX2+dX3Anycontinuouscurvecanbesufficientlywellapproximatelybyapolynomialofhighenoughorder.Y=a+bX+cX2
ModelSelectionI:principlesofmodelchoiceTheproblemofmodelchoiceY1=-7.62+3.189*X1+0.825*X12
ModelSelectionI:principlesofmodelchoiceTheproblemofmodelchoiceY1=-15.75+6.179*X1+0.6169*X12+0.00500*X13
ModelSelectionI:principlesofmodelchoiceTheproblemofmodelchoiceY1=-128.08+29.473*X1Y1=-7.62+3.189*X1+0.825*X12Y1=-15.75+6.179*X1+0.6169*X12+0.00500*X13…Y1=X1Y1=X1|X1Y1=X1|X1|X1…LinearQuadraticCubic…
ModelSelectionI:principlesofmodelchoicePrinciplesofmodelchoice
ModelSelectionI:principlesofmodelchoicePrinciplesofmodelchoiceEconomyofvariablesMultiplicityofp-valuesMarginality
HierarchiesmustberespectedinmodelformulaeSignificanceofinteractionsincludesimportanceofmaineffectsDonottestmaineffectswithaSSthathasbeenadjustedfortheinteractionModelSelectionI:principlesofmodelchoicePrinciplesofmodelchoiceEconomyofvariablesMultiplicityofp-valuesMarginality
ModelSelectionI:principlesofmodelchoicePrinciplesofmodelchoiceAismarginaltoA*B,A*B*C,A*X*XAisnotmarginaltoB,B*C,B*C*XXismarginaltoX*X,A*X,A*B*XXisnotmarginaltoA,Z,Z*Z,A*B,A*B*ZWhatdoesmarginalmean?
ModelSelectionI:principlesofmodelchoicePrinciplesofmodelchoiceWhymarginal?
ModelSel
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