A few days ago
Tina B

Statistics homework help???

With one method of a procedure called acceptance sampling, a sample of items is randomly selected without replacement and the entire batch is accepted if every item in the sample is okay. The Niko Electronics Co. has just manufactured 5000 cd’s and 100 are defective. If 4 of these cd’s are randomaly selected for testing, what is the probablity that the entire batch will be accepted?

I can’t figure this one out and I have been doing it for a couple hours now! Grrr!

Top 1 Answers
A few days ago
Bob W.

Favorite Answer

Okay…in order for it to be accepted, none can be defective. So, you have 4900 good ones. The probability is the chance of getting 4 good ones AND no bad ones over the total number of possibilities, or (4900C4) * (100C0)/(5000C4)
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