*Control Chart for Attribute There are 20 subgroups given，and after calcute the UCL and LCL, all subgroups are out of co
Posted: Wed Jul 06, 2022 6:15 am
*Control Chart for Attribute
There are 20 subgroups given，and after calcute the UCL and LCL, all subgroups are out of control. And the question state that subgroup 5 has new operator. So,
Option A: Eliminate the subgroup 5 since has assignable cause eventhough all subgroup are out of control.
Option B: No need to eliminate any point eventhough subgroup 5 has assignable cause since all subgroup have already out of control.
Which one is correct?
There are 20 subgroups given，and after calcute the UCL and LCL, all subgroups are out of control. And the question state that subgroup 5 has new operator. So,
Option A: Eliminate the subgroup 5 since has assignable cause eventhough all subgroup are out of control.
Option B: No need to eliminate any point eventhough subgroup 5 has assignable cause since all subgroup have already out of control.
Which one is correct?