Question

Suppose that the new average for the produced beam is 9.7 cm with a standard deviation...

Suppose that the new average for the produced beam is 9.7 cm with a standard deviation of 0.25 and that the new tolerances are from 9.5 cm and 10.8 cm. What is the probability that a bar chosen at random will conform to (be within the) specifications? Express your answer with four decimal points.

Math   Statistics-And-Probability   
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Answer #1

Refer Standard normal table/Z-table to find the probability OR use excel formula "=NORM.S.DIST(4.4, TRUE)" & "=NORM.S.DIST(-0.8, TRUE)" to find the probability.

The probability that a bar chosen at random will conform to (be within the) specifications is

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