5.6.2. Level average response analysis
The level average response analysis can be based upon the
observed data or upon the S/N data. The analysis is done by
averaging the raw data or the S/N data at each level of each
factor and plotting the values in a graphical form. The level
average responses from the raw data help in analyzing the
trend of the quality characteristic with respect to the variation
of the factors under study. The level average response
plots based on the S/N data help in optimizing the objective function under study. The peak points in these plots correspond
to the optimum condition. The level average response
plots for various quality characteristics in both the types of
grinding based upon the raw data are shown in Fig. 3 and
those based upon the S/N ratios are shown in Fig. 4.