The length of an injected-mold plastic case that holds tape is normally distributed with a mean length of 90.2 millimeters and a standard deviation of 0.1 millimeter

a. what is the probability that a part is longer than 90.3 mm or shorter than 89.7 mm

b. If parts that are not between 89.7 and 90.3 are scrapped, what is the yield for the process mean that you selected in part b (90)

Question

The length of an injected-mold plastic case that holds tape is normally distributed with a mean length of 90.2 millimeters and a standard deviation of 0.1 millimeter

a. what is the probability that a part is longer than 90.3 mm or shorter than 89.7 mm

b. If parts that are not between 89.7 and 90.3 are scrapped, what is the yield for the process mean that you selected in part b (90)