The Santa Fe Chip Company (SFCC) is introducing a new product of Red, White and Blue corn chips in a flag colored box. SFCC is concerned about the production process. SFCC would like each box to contain at least 100 chips and would like not more than 104 chips per box. SFCC would like each box to contain 33% red, 34% white and 33% blue chips.

Below are information and SPC charts for the box filling equipment: the proportion of blue chips per box and the number of chips per box.

2.a Is the process in control for the proportion of blue chips per box? Please state the charts or information used to reach your conclusion. Should you take any action?

2.b Is the process in control for the number of chips per box? Please state the charts or information used to reach your conclusion. Should you take any action?

2.c Is the process capable of producing the required products of at least 100 chips per box and not more than 104 chips per box? Should you take any action?

2.d If you found an out of control point for the proportion of white chips, which tool from Chapter 2 Process Strategy and Analysis would you use to investigate the variation? How would you use the tool?

Number of chips per box

Average = 101 Standard Deviation = 1.17 Cp =0.571

WCLLCLPbarBBlue R Chart X bar Chart