SOLUTION: The diameters of bolts produced by certain machine are normmaly disturbuted with a mean of 0.30 inches, and a standard deviation of 0.01 inches. What percentage of bolts will have
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Question 709458: The diameters of bolts produced by certain machine are normmaly disturbuted with a mean of 0.30 inches, and a standard deviation of 0.01 inches. What percentage of bolts will have a diameter greater than 0.32? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! The diameters of bolts produced by certain machine are normmaly disturbuted with a mean of 0.30 inches, and a standard deviation of 0.01 inches. What percentage of bolts will have a diameter greater than 0.32?
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Your measuring stick is the z-distribution.
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z(0.32) = (0.32-30)/0.01 = 0.02/0.01 = 2
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P(x > 0.32) = P(z > 2) = normalcdf(2,100) = 0.0228
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Cheers,
Stan H.
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