Statistical process control - mean and range charts, Operation Management

Statistical Process Control - Mean and Range Charts

1. SPC can be used as a means of preventing product non-conformance 

2. Causes of variability may be categorised as common causes and assignable causes 

3. Variables are features of a process output which can be measured on a continuous scale; attributes are features which do not lend themselves to measurement, but allow the output to be segregated into conforming and non-conforming items 

4. Variability can be assessed by analysing measurements to estimate the population mean and standard deviation 

5. Samples are used, to take advantage of the central tendency of sample means i.e. the means of samples cluster more closely around the population mean than do individual measurements 

6. Mean and range charts are used to monitor process variables 

7. Process capability is assessed by comparing the process variability with the product design tolerance band 

8. P-charts, np-charts and c-charts are used to monitor process attributes.

Posted Date: 3/16/2013 2:09:20 AM | Location : United States







Related Discussions:- Statistical process control - mean and range charts, Assignment Help, Ask Question on Statistical process control - mean and range charts, Get Answer, Expert's Help, Statistical process control - mean and range charts Discussions

Write discussion on Statistical process control - mean and range charts
Your posts are moderated
Related Questions
a small assembly line for the assembly of power steering pumps needs to be balanced. exhibit 8.11 is the precedence diagram. the cycle time is determined to be 1.5 minutes. how wou

In a 1-2 page paper discuss the following case study by applying the knowledge you gained through this week's studies. If necessary, you can conduct outside research to locate info

Discuss how current laws regarding search and seizure have the potential to violate the Fourth Amendment. In your response, provide specific examples of how this violation may occu

Suppose a British computer firm is acquiring a smaller competitor located in Frankfurt, Germany. What are two likely differences in the way these two firms carry out the decision m

Consider the make-or- buy in decision. Give three examples of situations in which a business should make, rather than buy. Give three examples of situations in which a business sho

Item Cost - $7.00 Order Cost - $283.00 Annual Hold - 32% of item cost Annual Demand - 22,100 Average Demand - 442 per week Standard deviation of weekly demand 20 per week lead time

Advantages of Process Layout Lower Capital Investment : Less capital is needed for this layout because production apparatus is applied to maximum capacity with minimum dup

In this case study, you will review a case involving a functional system. The Lynx Company uses a functional system for their sales system. It takes the orders from their salesm

Fred Flowers works for Alabama Electric and is a resident of the State of Florida. Following a series of storms in the Northeast, Alabama Electric sent Fred to Virginia as part of

Discuss the methodology of operation research