1. The sample grand mean (based on 45 samples of seven observations each) for th

1. The sample grand mean (based on 45 samples of seven observations each) for the weight of a can of beans is 250 grams with an average range of 8 grams. Find the upper and lower control limits for the x – and R -charts. 2. If 40 samples of 200 items are tested for nonconformity, and 240 of the 8000 items are defective, find the upper and lower control limits for a p -chart.

You may also like