PROBLEM 1. The machine produces 250 washers have a diameter of 0.502” with standard deviation of 0.005”. The allowable diameter is between of 0.496 to 0.508 inches; outside its size is already imperfect one. What is the percentage of machine produced perfect washers?
Mathbot Says...
I wasn't able to parse your question, but the HE.NET team is hard at work making me smarter.