Bushings are made on three identical CNC lathes with 33% production coming from each machine. Customers have had difficulty using these bushings due to the machines producing the bushings are not consistent, so customers have run into trouble using them due to the bushings being too small or too big.

A histogram is needed for each machine. I have attached a sample histogram for what it is supposed to look like.

Sample histogram of what its supposed to look like.

Bushing Production Machine 3 0.499 0.501 14 Mean 0.4998 SiDev .0.0008700 N 50 12 10 B Frequency 6 4 0.498 0.499 0.500 0.501 0.502 Bushing Measurement