Question

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 requires the resulting parts to be within ± 0.005 inch of the length specified by the automobile company. Data are collected from a sample of 100 steel parts and stored 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 frequency distribution and a percentage distribution.
b. Construct a cumulative percentage distribution.
c. Is the steel mill doing a good job meeting the requirements set by the automobile company? Explain.


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  • CreatedJuly 16, 2015
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