The length of connector pins has an upper specification limit of 45 mm and a lower specification limit of 40 mm. It is desirable that lots with a mean such that 8% of the product is nonconforming, either above the upper specification limit or below the lower specification limit, be accepted 6% of the time. We wish to accept lots with a mean of 42.5 mm with a probability of 0.94. The distribution of the length of the connector pin is normal, with a standard deviation of 0.8 mm. Find the parameters of a variable sampling plan and describe its operation.