Question
A machine produces items of which 10% are defective. At the end of each hour, a sample of n items is inspected. If it contains no defectives, the machine is allowed to run for another hour, otherwise the machine is stopped.
Find the minimum value of n if the probability that the machine will be stopped at the end of the first hour is at least 0.3?
Answer: 4
How to calculate???
Find the minimum value of n if the probability that the machine will be stopped at the end of the first hour is at least 0.3?
Answer: 4
How to calculate???