The number of defective components produced by a certain process in one day has

Question

The number of defective components produced by a certain process in one day has a Poisson distribution with a mean of 20. Each defective component has probability 0.60 of being repairable.

Find the area under the standard normal curve to the right of z = 0.85. Round your answer to four decimal places.

Find the area under the standard normal curve between z = 0.40 and z = 1.30. Round your answer to four decimal places.

Find the area under the standard normal curve between z = 0.30 and z = 0.90. Round your answer to four decimal places.

Find the area under the standard normal curve outside z = 1.50 and z = 0.45. In other words, compute P({Z < 1.50} {Z > 0.45})

Explanation / Answer

a) P(z>-0.85)

= 0.8023

b) P(0.40<Z<1.30)

= 0.2478

C) P(-0.30<Z<0.90)

= 0.4339

d) P(-1.50<Z<-0.45)

= 0.2595

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