Determine the control limits for the x-chart and the r-chart

Assignment Help Operation Management

Reference no: EM133345341

Question: Alcoa is making long aluminum rods for the frame of airplanes for the Boeing Company. The current process produces these rods, which need to pass a tensile strength test. Alcoa collected 6 observations every two hours in the first shift. The X-bar's and range are given below:

Sample Number	OBS. 1	OBS. 2	OBS. 3	OBS. 4	OBS. 5	OBS. 6	Mean	Range
1	37.00	37.50	38.50	40.00	39.00	42.00	39.00	5.00
2	38.00	37.00	41.50	39.00	38.50	37.00	38.50	4.50
3	38.50	42.50	41.50	42.00	42.50	42.00	41.50	4.00
4	37.00	42.50	41.00	42.50	42.00	41.00	41.00	4.50

Determine the control limits for the X-chart and the R-chart.

Reference no: EM133345341

Questions Cloud

Good typical process of strategy formulation : List Seven steps that you would follow in order to arrive at good typical process of Strategy formulation

Operations and supply chain management : Challenges of O&SCM in the toy industry. Explain 3 O&SCM challenges of this industry. Make sure to mention as many topics of the course as you can

While implementing stimulating fiscal policy : While implementing stimulating fiscal policy, provided the government is intended to raise the level of actual GDP, it should

Provide literature review using reference : Provide literature review using reference below specifically discussing co-workers influence the attitude of employees with disabilities

Determine the control limits for the x-chart and the r-chart : Determine the control limits for the X-chart and the R-chart. Alcoa is making long aluminum rods for the frame of airplanes for the Boeing Company.

Reasons these interests might come into conflict : A GM has responsibilities to guests, employees, owners, and of course to themselves. What are some reasons these interests might come into conflict?

Goal of the education and care national law : What is the main goal of the Education and Care National Law and the National Regulations. List the section of the National law that covers the requirements

Risk assurance manager of a manufacturing company : Risk Assurance Manager of a manufacturing company, producing fast-moving consumer goods. Develop a Risk Management Cycle/Process, clearly defining

The leadership blind spots at wells fargo : What kind of moral reasoning did the top management express? Focus on consequences versus duties.

User Account

All Pages