Question

A stable process has :
option- 1. percentage of defect free product .
2. control limit same as specification limit.
3. all points within control limit.
4. no variation at all
please ans me what is the right ans ?

Answer 1

I think the answer is Option 3

Answer 2

Answer: The correct answer is option 3- all points within control limit.

A stable process is consistent with respect to important characteristics of the process such as the average value or any variation in a given key dimension.

The distribution of process remains consistent and in control with time.

Whenever, it goes out of control it becomes an unstable process.