hygeinv - Hypergeometric inverse cumulative distribution function
Syntax
hygeinv(P,M,K,N)
Description
hygeinv(P,M,K,N) returns
the smallest integer X such that the hypergeometric
cdf evaluated at X equals or exceeds P.
You can think of P as the probability of observing X defective
items in N drawings without replacement from a
group of M items where K are
defective.
Examples
Suppose you are the Quality Assurance manager for a floppy disk
manufacturer. The production line turns out floppy disks in batches
of 1,000. You want to sample 50 disks from each batch to see if they
have defects. You want to accept 99% of the batches if there are no
more than 10 defective disks in the batch. What is the maximum number
of defective disks should you allow in your sample of 50?
x = hygeinv(0.99,1000,10,50)
x =
3
What is the median number of defective floppy disks in samples
of 50 disks from batches with 10 defective disks?
x = hygeinv(0.50,1000,10,50)
x =
0
See Also
icdf, hygecdf, hygepdf, hygestat, hygernd
 | hygecdf | | hygepdf |  |
Includes the most popular MATLAB recorded presentations with Q&A sessions led by MATLAB experts.
Get the Interactive Kit
Store 
