Downsizing is one method companies may use in an attempt to reduce costs. Suppose that the following contingency table shows the number of layoffs in three manufacturing plants during the last 4 months and the length of service (in months) by those employees that were laid off. Is there any relationship between theses two variables?

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Company Months of Service Less than 6 months 6 months to 1year More than 1 year 15 13 15 10 30 11 10