ENGR.ECONOMIC ANALYSIS
ENGR.ECONOMIC ANALYSIS
14th Edition
ISBN: 9780190931919
Author: NEWNAN
Publisher: Oxford University Press
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Answer this question. Part (b).

b) The company manufactures the inverters for the synchronous motors. The quality inspector
has determined that in each package, 92% of the inverters are within the correct tolerance
values with respect to their functionality, the remainder were out of tolerance. If a random
sample of 8 inverters are drawn from the package, determine the probabilities that
1. 4 of the sample inverters are out of tolerance
2. More than 5 of the sample inverters are out of tolerance
3. Less than three of the sample inverters are out of tolerance.
4. No one is out of tolerance.
You should show in details all the steps of your calculations.
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Transcribed Image Text:b) The company manufactures the inverters for the synchronous motors. The quality inspector has determined that in each package, 92% of the inverters are within the correct tolerance values with respect to their functionality, the remainder were out of tolerance. If a random sample of 8 inverters are drawn from the package, determine the probabilities that 1. 4 of the sample inverters are out of tolerance 2. More than 5 of the sample inverters are out of tolerance 3. Less than three of the sample inverters are out of tolerance. 4. No one is out of tolerance. You should show in details all the steps of your calculations.
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