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Exercise 13-42 Multiple-Year Trend Reports The controller of Emery, Inc. has compured quality costs as a percentage of sales for the part 5 years ( 20X1 was the first year the company implemented a quality improvement program). This information is as follows: Required: 1. Prepare a trend graph for total quality costs. Comment on what the graph has to say about the success of the quality improvement program. 2. Prepare a graph that shows the trend for each quality cost category. What does the graph have to say about the success of the quality improvement program? Does this graph suppl? more insight than the total cost trend graph does? Prepare a graph that compares the trend in relative concrol costs versus relative failure costs. Comment on the significance of this trend