1. Consumer Reports states that a cereal has less than the listed 16 ounces in each box. Assume that government regulations say that it must be within 5 percent of the weight advertised (notice that these are the spec limits). If we buy 1,000 boxes of cereal and find that they weigh an average of 15.875 ounces with a standard deviation of 0.529ounces.

a) What is the Cpk of this process? What does that mean? Are the cereal boxes OK to sell by government regulations?

b) Instead of measuring specific numbers, such as those seen above, you are simply determining if the boxes of cereal meet or not the specification. What type of control chart would you use?

c. Now assume that you need to find the number of defects in the finished good. What type of control chart would you use?