STI BM1710 ACTIVITY ON STATISTICAL PROCESS CONTROL 1. A manufacturer of precision machine parts produces round shafts for use in the construction of drill presses. The average diameter of a shaft is 0.56 inch. Inspection samples contain six (6) shafts each, The average range of theses samples is 0.006 inch, Determine the upper and lower f control chart limits. 2 Allman Distributors, Inc., fills catalog orders Samples of sike n = 100 orders have been taken each day over the past six (6) weeks. The average defect rate was 0.05, Determine the upper and lower limits for this process for 99.73%% confidence