2a) When 2b) When will you use the 2 practional Factorial Design in the design o

Question

2a) When 2b) When will you use the 2 practional Factorial Design in the design of wn esperiment 2e) when will youuset eRedeugn in the design orang periment "une n o 2d) Provide interpretations for the following outpat of a regression analysis s data gpencvated from an scientifically derived ex experiment. The model was developed by analyzing the data tnos a Least Squares 1 Method 8.600 0.1500 Temp 25.00 00000x Speed Stirring Rate Machine Type Voltage Applied 0.00 8.50 20.00 0.5000 x 0.3000 0.1000 1x 0.0000 1x Ra 0.9102 Adj R Std Error 0.8917 16.4452 49.3869 (Specify: I. The significant model variables: II. The regression model, indicating important model indices and the significance of the model terms or the model elements at the 5% level). IlL. The degree of sociation of the model a. i.e. the Coefficient of Determination.

Explanation / Answer

1)

The significant variables are B, C, E and H

2)

Distance (y)=110-8.5*Pressure+12*Temp+20*Conc+25*Speed+12.5*Stirring rate-30*Machine type+8.5*Voltage applied+20*Current density

3)

r^2=0.9102

91% of the variation in dependent variable is accounted for by the variation in independent variables

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