Specific Motors Corp. has a new supplier for spark plugs and is concerned about the incoming quality. They purchase spark plugs in lots of 10,000 at a time and want to use Z 1.4 to determine an acceptance sampling plan. Corporate officers has agreed on an AQL value of 1.5% defectives and the use of general inspection level II.
1. Determine the acceptance sampling plan you would recommend using Z 1.4 as a guideline.
2. Sketch the operating characteristic curve.