Chapter 2, Problem 43PS

One operation of a mill is to cut pieces of steel into parts that will later be used as the frame for front seats in an automobile. The steel is cut with a diamond saw and requites the resulting parts to be within $\pm 0.005$ inch of the length specified by the automobile company. The data are collected from a sample of 100 steel parts and stores in steel. The measurement reported is the difference in inches between the actual length of the steel part, as measured by a laser measurement device, and the specified length of the steel part, For example, the first value, $-0.002,$ represents a steel part that is $0.002$ inch shorter than the specified length.

a. Construct a percentage histogram.

b. Is the steel mill doing a good job meeting the requirements set by the automobile company? Explain.