The amount of warpage in a type of wafer used in the manufacture of integrated circuits has

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The amount of warpage in a type of wafer used in the manufacture of integrated circuits has mean 1.3 mm and standard deviation 0.1 mm. A random sample of 200 wafers is drawn.

a. What is the probability that the sample mean warpage exceeds 1.305 mm?

b. Find the 25th percentile of the sample mean.

c. How many wafers must be sampled so that the probability is 0.05 that the sample mean exceeds 1.305?

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Statistics For Engineers And Scientists

ISBN: 9780073401331

4th Edition

Authors: William Navidi

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Question Posted: Nov 15, 2018 11:20 AM

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The amount of warpage in a type of wafer used in the manufacture of integrated circuits has

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a Let X 1 X 200 be the amounts of warpage in the 200 wafers Then X is app...View the full answer

Statistics For Engineers And Scientists

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