The following sample data reflect shipments received by a large firm from three different vendors.

a. Specify the competing hypotheses to determine whether quality is associated with the source of the shipments.
b. Conduct the test at a 1% significance level using the critical value approach.
c. Should the firm be concerned about the source of the shipments?Explain.

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Defective 14 10 Acceptable 112 70 150 Vendor