Mathematics, 07.04.2020 02:59 leopard7982
A wire bonding process is said to be "in control" if the mean pull strength is 10 pounds. It is known that pull-strength measurements are normally distributed with a standard deviation of 1.5 pounds. Periodic random samples of size 4 are taken from this process and the process is said to be "out of control" if a sample mean is less than 8.25 pounds.
1. What is the probability that the process will be declared "out of control" when the true mean pull strength is 10 pounds? A. 0.0021
B. 0.0099
C. 0.0548
D. 0.1217
Answers: 1
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A wire bonding process is said to be "in control" if the mean pull strength is 10 pounds. It is know...
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