Statistical Tools for Multivariate Six Sigma. Dr. Neil W. Polhemus CTO & Director of Development StatPoint, Inc. Revised talk: www.statgraphics.comdocuments.htm. The Challenge. The quality of an item or service usually depends on more than one characteristic.
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Determines joint probability of being within
the specification limits on all characteristics.
MPG City = 29.9911 - 0.0103886*Weight + 0.233751*Wheelbase (R2=73.0%)
MPG City = 64.1402 - 0.054462*Horsepower - 1.56144*Passengers - 0.374767*Width
C1 = 0.377*Engine Size + 0.292*Horsepower + 0.239*Passengers + 0.370*Length
+ 0.375*Wheelbase + 0.389*Width + 0.360*U Turn Space + 0.396*Weight
C2 = -0.205*Engine Size – 0.593*Horsepower + 0.731*Passengers + 0.043*Length
+ 0.260*Wheelbase – 0.042*Width – 0.026*U Turn Space – 0.030*Weight