Determine the process capability

Question

Discuss the below

Q1 Identify the type of data

Q2 Determine the process capability

Q3 Determine the 3 sigma limits for X bar chart

Q4 Is the machine capable of meeting the specification requirements

Q5 Calculate the percentage defective, if any

Q6 Suggest possible ways by which the percent defective can be reduced

Assumptions

1 Normal distribution

2 d2 for group size 5 is 2.326

1. variable data

Pieces	12.62	12.63	12.62	12.61	12.59	12.57	12.57	12.58	12.61	12.62
	12.6	12.56	12.56	12.66	12.58	12.63	12.56	12.57	12.6	12.59
	12.62	12.6	12.57	12.62	12.57	12.6	12.61	12.6	12.62	12.62
	12.61	12.59	12.58	12.61	12.59	12.6	12.59	12.6	12.6	12.59
	12.65	12.6	12.63	12.6	12.56	12.59	12.59	12.61	12.65	12.56