Question

quality improvement

plan design is #3

inspection is normal level II. Atccpiaioo qum Using the plan designed in problem 3, determine the probability of rejecting a lot when the 0.5% and 1.5% of the lot is defective 4. 2. How is different the MIL-SID TOSD V3 I D Using MIL STD 105 E design a sampling plan when the lot size is 2200 units, the inspection is normal level II. Acceptance quality level is 0.1%. 3. Using the plan designed in problem 3, determine the probability of rejecting a lot when the 0.5% and 1.5% of the lot is defective 4.

Answer 1

4)

we are given that,

Average Quality Level (AQL)= 1%

Lot size = 2200, process average defect = 0.5%

From the Dodge Roming single sampling lot inspection table, for given process average defect and lot size, the sampling scheme will be:

N= 26, c = 1, LQL= 5.8%

where N is the sample size to be inspected

c = acceptable defective i.e. 1 defectives are acceptable in a sample of 26 subjects.

Average Quality Level (AQL)= 1%

Lot size = 2200, process average defect = 1.5%

From the Dodge Roming single sampling lot inspection table, for given process average defect and lot size, the sampling scheme will be:

N= 30, c= 2, LQL= 7.2%

where N is the sample size to be inspected

c = acceptable defective i.e. 2 defectives are acceptable in a sample of 30 subjects.