Illustrate what other steps should the qc department

Reference no: EM1326180

Question about Statistical quality control

Small boxes of NurtraFlakes cereal are labeled "net weight 10 ounces." Each hour, random samples of size n = 4 are weighed to check process control Five hours of observations yielded the following:

Weight

Time Box 1 Box 2 Box 3 Box 4
9 a.m. 9.8 10.4 9.9 10.3
10 a.m. 10.1 10.2 9.9 9.8
11 a.m. 9.9 10.5 10.3 10.1
Noon 9.7 9.8 10.3 10.2
1 P.M. 9.7 10.1 9.9 9.9

Using these data, construct limits for x- and R-charts. Is the process in control? What other steps should the QC department follow at this point?

I have already answered the questions. What I need help is with the Excel Solver, that's where I am having problems. It is within control. And the QC department should increase the sample size to provide a clearer indication as to both control limits and whether or not the process is in control. And the smallest mean is 9.9 and the largest is 10.2 and the largest sample range is 0.6. I am just having problems with the Excel Solver.

The mean factor A sq 2 = 0.577 sample size 5
The upper range D 4 = 2.114 sample size 5
The lower range D 3 = 0 sample size 5
These are used in the formula to receive the UCL and LCL

Reference no: EM1326180

Questions Cloud

Explain the grocery retailier and ucc contracts/supplier con : Supplier, Inc., a large wholesaler, had a contract with Grocery. Supplier sued Grocery for breach of contract when Grocery failed to place an order for goods by a specific date as specified in the contract.

Ethical and socially responsibility of professors : Is it ethical and socially responsible for professors to drop standards and for colleges to award degrees for doing less work today than 5, 10, 15, or 20 years ago?

Explain organizational structure of amazon contrast : Explain Organizational Structure of Amazon contrast to two other structures and Describe the organizational structure Of Amazon

Analysis of the process variability : Converging technologies - An analysis of the process variability based upon your understanding of the process and any data collected

Illustrate what other steps should the qc department : Utilizing the data, construct limits for x- and R-charts. Explain the process in control. Illustrate what other steps should the QC department follow at this point.

Write down a program that includes a function picnic() : The passed floating-point number represents TOTAL amount of money to be spent on food. The function is to determine the quantity of HOTDOGS, HAMBURGERS,SALAD,PICKLES that can be purchaced, writing these values directly into the respective variable..

Can an individual succeed when a system fails : Important information about Systems Thinking - What is the relationship between systems thinking and individual success within an organization? Can an individual succeed when a system fails?

Explaining about the forming partnerships : What other legal issues are present in this situation? It has been a year and a half since the partnership was formed. What legal issues are present in this situation?

Implications of implementing strategies on stakeholders : Describe the implications of implementing these strategies on stakeholders.

User Account

All Pages