top of page
Qualitative Frequency Chart
N-5 Average Chart
N-5 range chart
Statistical Process Control for Variable Data
This analysis as performed on two lathes the N-5 and the N-7. X bar and R bar charts were used to determine which of the two lathes has a more precise process. From this data it was concluded that the N-7 lathe has a more precise process due to a fewer number of outliers than the N-5 lathe.
bottom of page