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SMAM 314 Quiz 6 Name__________ Use the normal approximation to the binomial distribution with the continuity correction to do this problem. The manufacturing of semiconductor chips produces 2% defective chips. Assume the chips are independent and that a lot contains 1000 chips. Approximate the probability that more than 25 chips are defective. µ = 1000(.02) = 20 ! = 1000(.02)(.98) = 4.427 25.5 " 20 & # P(X > 25) = P % Z > ( = P(Z > 1.24) = 1 " P(Z ) 1.24) $ 4.427 ' = 1 " .8925 = .1075 or normalcdf(25.5,10^99,20,4.427)=.1071