Sample Size / Statistical Significance
Sample Size / Statistical Significance
(OP)
New here. My search didn't turn up anything, but if I missed it, please point me in the right direction.
I need know how to determine the number of units we need to test (MIL_STD 810F) in order for the testing to be statistically significant.
All the info I can find on the web talks about marketing surveys, and I'm having trouble translating it into something useful.
Is there a tutorial around, or should I just use 32? :)
Thanks in advance.
I need know how to determine the number of units we need to test (MIL_STD 810F) in order for the testing to be statistically significant.
All the info I can find on the web talks about marketing surveys, and I'm having trouble translating it into something useful.
Is there a tutorial around, or should I just use 32? :)
Thanks in advance.





RE: Sample Size / Statistical Significance
TTFN
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RE: Sample Size / Statistical Significance
Thanks!
RE: Sample Size / Statistical Significance
RE: Sample Size / Statistical Significance
In trying to prove out a new batch process, how many batches do I need to run in order to show that I am able to confidently make specifications of the product.
Is 10 enough ?
RE: Sample Size / Statistical Significance
Cheers
Greg Locock
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RE: Sample Size / Statistical Significance
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: Sample Size / Statistical Significance
Here's the link for that chapter:
http://pubs.usgs.gov/twri/twri4a3/pdf/chapter3.pdf
The entire report is in the public domain and has a wealth of knowledge about statistical methods.
You can read the intro and get to the PDFs from this page:
http://pubs.usgs.gov/twri/twri4a3/
I'm a power engineer so I shouldn't be recommending a reference dealing with water, but I think you'll find this to contain a wealth of good basic statistical info and I think it's quite well written.
RE: Sample Size / Statistical Significance