Gibson Guitars in Nashville TN has been evaluating new automated paint processes, to implement in a new facility quality-improvement project. Your supervisor has tasked you with negotiating with all equipment vendors that meet minimum quality specifications. Ideal paint thickness per layer for top-of-the-line Gibson Les Paul guitar models is 4.00 mils (4 thousandths of an inch = 0.00400 inches). Multiple layers of primer, paint, and clear-coat sealer are applied to each guitar. The data below is the result of testing trials of four systems from four different equipment vendors (A, B, C, and D).Vendor Mean thickness, in mils Std Deviation Lower Specification Limit, in mils Upper Specification Limit, in mils A 3.81 0.0450 3.85 4.20 B 4.11 0.1500 3.85 4.20 C 4.29 0.0500 3.85 4.20 D 4.11 0.0450 3.85 4.20; A Cpvalue (process capability) of 1.00 (representing 3-Sigma Quality) is deemed necessary for potential paint-system utilization and price negotiations with these vendors. Additionally, the mean test values must not violate the upper specification limits or lower specification limits. a) Calculate Cp(process capability) values for each of the four vendors. b) Which vendors should be contacted for price negotiations? and c) explain why. Cpr Ca Cf Annual Cost Prevention Appraisal Failure