TABLE P6.7 Process Development Experiment from Problem 6.28 Actual Run Run Yield Factor Levels Number Order A B C D (Ibs) Low (-) High (+) 12 A (h) 2.5 18 B (%) 14 18 13 C (psi) 60 80 16 D(C) 225 250 +++++ ++Illllll 15 13 4 14 16 15 10 16 12Problem 6.28 in [Montgomery 2013], consider only the data in P6.7 and answer the following questions instead. a. As the experiment discussed in the problem has only one replicate, the data cannot be directly analyzed. Based on the contribution of the different factors to total variability, which factor is least important? b. Based on part a, reformulate Table P6.7 as a 23 design with two replicates (rather than a 2* design with one replicate). Analyze the factors with ANOVA