JMP version 17.2.0
We manufacture small units and mount 300 units on each assembly. Each assembly is tested, and we determine the number of defective units per assembly. We have records of 20 assemblies, and we know the number of defective units found in each of the 20 assemblies. A process change is considered, and we wish to determine whether the change reduces the defects per assembly significantly. What is the best practice to determine sample size, power, and reduction in defects: 1-sided test, target is 0 defects per assembly.