Solved

Finding Upper Control and Lower control

Posted on 2013-05-30
2
304 Views
Last Modified: 2013-06-05
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
Comment
Question by:Jamie33
2 Comments
 
LVL 28

Expert Comment

by:serialband
ID: 39209824
0
 
LVL 37

Accepted Solution

by:
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

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
visual studio and gui 6 44
How do I structure my program to keep track of user defaults? 4 311
Best practices for thread safety in Java? 10 346
Good Coding 3 143
Introduction This article discusses the Chain of Responsibility pattern, explaining What it is;Why it is; andHow it is At the end of this article, I hope you will be able to describe the use and benefits of Chain of Responsibility.  Backgrou…
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…
This is used to tweak the memory usage for your computer, it is used for servers more so than workstations but just be careful editing registry settings as it may cause irreversible results. I hold no responsibility for anything you do to the regist…
Both in life and business – not all partnerships are created equal. As the demand for cloud services increases, so do the number of self-proclaimed cloud partners. Asking the right questions up front in the partnership, will enable both parties …

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

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

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

23 Experts available now in Live!

Get 1:1 Help Now