A machine cuts pieces of electromagnetic interference gaskets.
The length of each gasket is measured and classified as being too
short, OK, or too long. Likewise, the width of each gasket is
measured and classified as being too narrow, OK, or too wide. The
results of a sample of 1029 gaskets are shown in the table below.
Test the claim that the width classification is independent of the
length classification at the 90% confidence level.
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