Question

The type of part being manufactured today should be 1.27 inches wide, with a tolerance of 0.04 inches. If a part does not meet the size requirement, it must be rejected. You have 4 parts to inspect. They have the following widths. How many must be rejected?
1.275 inches, 1.300 inches, 1.266 inches, 1.255 inches

Answer 1

Answer:

The range of widths is {1.23,1.31} so none will be rejected, answer A.