In a food processing plant, four design parameters, A, B, C, and D, each at three levels,

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In a food processing plant, four design parameters, A, B, C, and D, each at three levels, have been identified as having an effect on the moisture content in packaged meat. Three noise factors, E, F, and G, each at two levels, are also to be investigated in the experiment. In the inner array, an L·» orthogonal array is used with the factors A, B, C, and D assigned to columns 1,2,3, and 4, respectively. For the outer array, an L4 orthogonal array is used with the noise factors E, F, and G assigned to columns 1, 2, and 3, respectively. Table 12-45 shows the moisture content in a coded scale for four replications of each of the nine experiments in the inner array. It is preferable that the moisture content be around a coded value of 20. Show the complete parameter design layout using the Taguchi method. Calculate the mean response and the appropriate signal-to-noise ratio. Plot the average S/N ratios and the average responses, and discuss how the design factor levels are to be selected. Use the average response plots to determine the existence of possible interactions B x E and C x F. What are the optimal settings of the design parameters using Taguchi's parameter design approach?
In a food processing plant, four design parameters, A, B,
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