You currently have an acceptance sampling plan in which n = 40 and c = 1, but you are unsatisfied with its performance. The AQL is 1 percent, and the LTPD is 5 percent.
a. What are the producer’s and consumer’s risks for this plan?
b. While maintaining the same 1:40 ratio of c:n (called the acceptance proportion), increase c and n to find a sampling plan that will decrease the producer’s risk to 5 percent or less and the consumer’s risk to 10 percent or less. What producer’s and consumer’s risks are associated with this new plan?
c. Compare the AOQLs for your plan and the current plan. Assume a lot size of 1,000 units.