Question
The defect rate of the computer chips produced by a factory is 6 percent. A sample of 400chips is selected for inspection. a) What is
The defect rate of the computer chips produced by a factory is 6 percent. A sample of 400chips is selected for inspection.
a) What is the exact probability that this sample contains between 20 and 25 defective chips (including20 and 25)?
b) What is the CLT approximation to the probability in part (a)? Make sure to use the continuity correction.
c) Suppose that each of 40 inspectors collects a sample of 400 chips. What is the probability that atleast 8 inspectors will find between 20 and 25 defective chips in their samples?
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Advanced Engineering Mathematics
Authors: ERWIN KREYSZIG
9th Edition
0471488852, 978-0471488859
