Question

Problem 3. 10 ± A new contract was written with Company A with the following stipulations: Cpk = 1.4, Specification Nominal (N) = The Supplier found that their process average of

by as much as 10 could vary 0.2 mils. The Supplier decided to monitor quality with a P-Chart (n = 50). Find the following: 0: Pbar: UCLp: Reject Rate (RR): PPM LCLp: NOTE: P-Chart Calculations are separate from the Cpk calculations. The o is derived from the Cpk minimum. 0.5 mils.

Fig: 1