SOLUTION: A Computer manufacturer wants to estimate the mean number of defective microchips it produces in a month. From previous study they know that the standard deviation is 10.68.
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Question 1188542: A Computer manufacturer wants to estimate the mean number of defective microchips it produces in a month. From previous study they know that the standard deviation is 10.68.
What is the required sample size for the manufacturer to be 95 percent confident, that the average defective microchips are within thier industry average with an allowable error of 0.5
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
error= z*sigma/sqrt (n)
0.5=1.96*10.68/sqrt(n)
sqrt(n)=3.92*10.68=41.8656
n=1753, rounded up.
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