Suppose 2% of power drills are defective. What is the probability that in a random sample...
Suppose 2% of power drills are defective. What is the probability that in a random sample of 1000 power drills, at most 15 are defective. Use the normal approximation to the binomial to approximate this probability.
Homework Answers
P[atmost 15 are defective]
=P[X<15.5]....................by using continuity correction.
=P[Z<-1.02]
=0.1539..................by using Z table.
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