Statistical process control - mean and range charts, Operation Management

Assignment Help:

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.


Related Discussions:- Statistical process control - mean and range charts

Explain supply chain might also benefit the national economy, The bullwhip ...

The bullwhip effect is often blame for the boom-and-bust cycles in our national economy. Which of the remedies for eliminating this effect in a supply chain might also benefit the

Explain cars tend to break down at the rate of two per hour, During the cam...

During the campus Spring Fling, the bumper car amusement attraction has a problem of cars becoming disabled and in need of repair. Repair personnel can be hired at the rate of $20

Explain managerial leadership, Explain managerial leadership. Manageri...

Explain managerial leadership. Managerial Leadership: Effective managing needs leadership. This is seldom possible to segregate the behavioural functions of manager-ship a

Steps in work measurement, Steps in  work Measurement: The  various s...

Steps in  work Measurement: The  various steps  are : 1. Break the job  into elements: 2. Record the observed time  for each  element  by means  of time  study  synthesi

Explain terms labor, The Stone Company produces three sizes of window fans:...

The Stone Company produces three sizes of window fans: small, medium, and large. The manager has formulated an LP model for fan production: maximize 6 x1 + 8 x2 + 5 x3 (profit) sub

Five forms of waste within manufacturing organisations, Describe FIVE forms...

Describe FIVE forms of waste within manufacturing organisations that lean process improvement aims to eliminate. Inventory (all components, work in progress and ended produ

Increase in productivity be if we could remove the scrap, An operation has ...

An operation has a 20 percent scrap rate. As a result, 80 pieces per hour are produced. a. If we could eliminate the scrap, how many pieces could we produce? b. What would be

Solution to the transportation problem, A transportation problem can be sol...

A transportation problem can be solved by two methods using (a) simplex methods and(b) transportation method. We shall illustrate these with the help of an example. Exam

Explain gather information outside a case analysis, When should you gather ...

When should you gather information outside a case analysis by going to the library or using the Internet and, what should you look for?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd