Confidence in attribute testing

FRHIT01 · #1 30th May 2008, 10:17 AM

This is probably STATS 101 but I need help knocking the dust off my stats book.

How do I determine the number of actuations needed to be 90, 95, or 99% confident that the product will not jam in 99% of all intended actuations?

Knowns:
Data is Attribute
Actuation life needed 900
Each product can actuate 10 times before end of life

I appreciate the help.

**Bev D** · #2 30th May 2008, 01:05 PM

I'm not sure what your "knowns" mean, but your to answer your question; you need to use the exact binomial equation...

FRHIT01 · #3 2nd June 2008, 11:29 AM

Bev D,
Thanks I tried getting this equation to work, but I couldn't figure it out. Can you please help on how to use the equation?
Thanks again

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