Process Control: ALT 1 - Are We Too Cool?

Homework Problem Set: Individual and Moving Range

Problem #1

Based on the Left armature data from Homework Set #1 determine if the process is in statistical control by plotting the data on an Individual and moving Range Chart. (X &mR)

Problem #2

Given the following data (lead time in days for processing purchase orders) prepare an X&movR chart. In addition, determine what the capability of the process is given that the suggested maximium processing time is 3 weeks. 18 13 11 14 19 16 15 13 16 10 15 7 9 24 16 15 7 17 16 11 13 11 6 11 13 11 12 14 12 17