Atlanta-based Porsche Cars North America is restoring 1973 Porsche 911 models. As a manufacturer keen on...

 

Transcribed Image Text:

Atlanta-based Porsche Cars North America is restoring 1973 Porsche 911 models. As a manufacturer keen on producing the highest quality products, Porsche CNA is very interested in assuring their processes are in control and producing consistently high-quality outputs. Porsche is interested in reviewing the quality of their silver painting restoration of these 1973 models. Thus, they are investigating the cathodic dip coating priming paint process which applies a primer to all parts of the body of the 911. The advantage of a prime coat applied using a cathodic dip coating bath lies in its thoroughness. The electrostatic charge means that the paint particles attach themselves to every last nook and cranny as if they were attracted by a magnet. They protect areas that are difficult to reach even thorough application using a spray gun. Porsche engineers investigated the following vehicles and noted how many areas of the body were not electro statically primed as expected: (aside: please note the data are distributed categorically) Vehicle Number 1 Number of areas not electro statically charged on primed vehicle 0 0 A. ABC DRAW GRAPH ABOVE THIS Construct the appropriate control limits (UCL and LCL) by calculating the bar and standard deviation. Assume Z = 1.96 and alpha is .05. B. Graph and plot the data and label CLs. C. Determine whether the process is in or out of control by comparing calculated p-value to alpha and what you recommend to the engineering team at Porsche. 1 7 0 11 OF0225TTOOO 11 1 11 123456789022345 Atlanta-based Porsche Cars North America is restoring 1973 Porsche 911 models. As a manufacturer keen on producing the highest quality products, Porsche CNA is very interested in assuring their processes are in control and producing consistently high-quality outputs. Porsche is interested in reviewing the quality of their silver painting restoration of these 1973 models. Thus, they are investigating the cathodic dip coating priming paint process which applies a primer to all parts of the body of the 911. The advantage of a prime coat applied using a cathodic dip coating bath lies in its thoroughness. The electrostatic charge means that the paint particles attach themselves to every last nook and cranny as if they were attracted by a magnet. They protect areas that are difficult to reach even thorough application using a spray gun. Porsche engineers investigated the following vehicles and noted how many areas of the body were not electro statically primed as expected: (aside: please note the data are distributed categorically) Vehicle Number 1 Number of areas not electro statically charged on primed vehicle 0 0 A. ABC DRAW GRAPH ABOVE THIS Construct the appropriate control limits (UCL and LCL) by calculating the bar and standard deviation. Assume Z = 1.96 and alpha is .05. B. Graph and plot the data and label CLs. C. Determine whether the process is in or out of control by comparing calculated p-value to alpha and what you recommend to the engineering team at Porsche. 1 7 0 11 OF0225TTOOO 11 1 11 123456789022345