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MBA 2019-20
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Question of the Day (02-Jan-21)
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Rated 4.6 by 11 Users
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Five standard samples of wires have length 0.9, 0.9, 1.2, 1.0 and 0.8 metres. According to the six sigma methodology, all manufactured wires but the ones that are within 6 standard deviations from the mean of the standard samples are to be rejected.
Two new wires A and B come in. Their lengths are 0.7 and 1.7 metres respectively.
Which of the following is true?
OPTIONS
1)
Both A and B will be accepted.
2)
A will be accepted and B will be rejected.
3)
B will be accepted and A will be rejected.
4)
Both A and B will be rejected.
Discuss
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Solution
Six standard deviations = 0.84 m
Upper limit of the length of the wire = 0.96 + 0.84 = 1.8 m
Lower limit of the length of the wire = 0.96 − 0.84 = 0.12 m
As 0.12 < 0.7, 1.7 < 1.8 sample A and B both will be accepted.
Hence, option 1.
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