An engineer has conducted a year-end analysis (365 data points) of incoming materials by checking for dimensional variation. For one of the items (a ruler), the print dimension of length is to be 12.50 inches +/- 0.02 inches. The computer software indicated that the grand average was 12.52 inches and was statistically different from 12.50 inches. The engineer should do the following:

		Since the result is statistically significant, request the supplier to modify his equipment by 0.02 inches
		Follow the decision of the computer analysis, start rejecting the rulers
		The result is not of practical significance; the difference is too small to justify a change
		The supplier is to be notified via a corrective action request to correct his process