Sections 9.2 & 9.3 Homework o Saved Help Save & Exit 18 Part 3 of 5 ) 3 points Skipped eBook & Hint Ask D References Submit Required information The article \"Use of Taguchi Methods and Multiple Regression Analysis for Optimal Process Development of High Energy Electron Beam Case Hardening of Cast Iron\" (M. Jean and Y. Tzeng, Surface Engineering, 2003:150-156) describes a factorial experiment designed to determine factors in a high-energy electron beam process that affect hardness in metals. Results for two factors, each with three levels, are presented in the following table. Factor A'is the travel speed in mm/s, and factor Bis accelerating voltage in volts. The outcome is Vickers hardness. There were six replications for each treatment. In the article, a total of seven factors were studied; the two presented here are those that were found to be the most significant. A [ B | Wardness | 10 % 698 546 | 559 876 | 835 | 868 756 | 732 o | 77 827 786 | 775 675 3 4 3 Is the additive model plausible? Provide the value of the test statistic and the P-value. The test statistic is . (Round the final answer to three decimal places.) P-value: | (Click to select) v The additive model is | (Click to select) v |. s