A manufacturer produces bearings with diameter D 90 mm The

A manufacturer produces bearings with diameter D = 90 mm. The bearings have an oil layer with thickness normally distributed with a mean of 0.072 and a standard deviation of 0.036. The specification requires the oil layer thickness to be between 0.0005D and 0.001D. If a random bearing is selected, what is the probability that the oil layer is thicker than 0.001 D?