Solved

Finding Upper Control and Lower control

Posted on 2013-05-30
308 Views
How do I find the UCL and the LCL for the following data:
0.551
0.546
0.547
0.548
0.547
0.547
0.538
0.546
0.542
0.543
0.545
0.547
0.543
0.548
0.545
0.554
0.549
0.546
0.545
0.553
0.549
0.541
0.542
0.545
0.546
0.552
0.546
0.546
0.545
0.547
0.548
0.547
0.545
0.54
0.545
0
Question by:Jamie33
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

• Help others & share knowledge
• Earn cash & points
• Learn & ask questions

LVL 29

Expert Comment

ID: 39209824
0

LVL 37

Accepted Solution

TommySzalapski earned 500 total points
ID: 39210373
That link details it nicely. The only thing I would change is that I would say you should use the corrected sample standard deviation if you are calculating it from your data.
http://en.wikipedia.org/wiki/Standard_deviation#Corrected_sample_standard_deviation
If you calculated the biased standard deviation using the ehow link, then just take that result and multiply it by sqrt(N/(N-1)) to get the corrected sample standard deviation.
0

Featured Post

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Saving a setting for all users at runtime which is secure. 2 225
Accessing sub list data in a C# struct 6 452
Programmer Problem Solver 3 186
seriesUp challenge 7 200
The CRUD Functions CRUD, meaning "Create, Read, Update, Delete (http://en.wikipedia.org/wiki/Create,_read,_update_and_delete)" is a common term to data base developers.  It describes the essential functions of data base table maintenance.  This art…
Introduction A frequently used term in Object-Oriented design is "SOLID" which is a mnemonic acronym that covers five principles of OO design.  These principles do not stand alone; there is interplay among them.  And they are not laws, merely princ…
Progress
How to Install VMware Tools in Red Hat Enterprise Linux 6.4 (RHEL 6.4) Step-by-Step Tutorial
Suggested Courses
Course of the Month4 days, 18 hours left to enroll

739 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.