Determine the upper control limit ucl for an x-bar chart if


Question - Six samples of subgroup size 4 (n = 4) were collected. Determine the upper control limit (UCL) for an X-bar chart if the mean of the sample averages is 4.7 and the mean of the sample ranges is 0.35.

Factors for calculating control limits

n            A2                 D3         D4

2            1.880             0            3.267

3            1.023             0            2.574

4            0.729             0            2.282

5            0.577             0            2.114

6            0.483             0            2.004

Solution Preview :

Prepared by a verified Expert
Accounting Basics: Determine the upper control limit ucl for an x-bar chart if
Reference No:- TGS02475566

Now Priced at $25 (50% Discount)

Recommended (94%)

Rated (4.6/5)