Question

Examine the following data and determine if the process is capable using a specification of 2.100 +/-0.017. Assume s_st = 0.0044.

2.095            2.090            2.119

2.096            2.092            2.110

2.090            2.102            2.113

2.095            2.098            2.100

2.089            2.095            2.099

2.081            2.102            2.104

2.080            2.101            2.102

2.092            2.099            2.106

2.094            2.102            2.119

2.093            2.118            2.118

What is the long term standard deviation?

What is the capability index and ratio?

What is the process performance index and ratio?

Is the process capable? Why?

Answer 1