The Federal Trade Commission’s investigation of consumer product complaints has generated much interest on the part of manufacturers in the quality of their products. A manufacturer of an electromechanical kitchen utensil conducted an analysis of a large number of consumer complaints and found that they fell into the six categories shown in Table 6 . If a consumer complaint is received, what is the probability that the cause of the complaint was the appearance of the product given that the complaint originated during the guarantee period?

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Table 6 Distribution of Product Complaints Reason for Complaint Electrical Mechanical Appearance Totals During Guarantee Period After Guarantee Period 18% 13% 32% 63% 12% 22% 3% 37% Totals 30% 35% 35% 100%