A. 0.9128
B. 0.0872
C. 0.9532
D. 0.0468
The manufacturing of semiconductor chips produces 2% defective chips. Assume the chips are independent and that a lot contains 2000 chips. Use normal distribution to approximate the probability that more than 50 chips are defective.
Let P(Z 1.677) = 0.9532; P(Z 1.358) = 0.9128
