Mr. Bosch, using data from thePost-Delivery Defectsworksheet, has noticed that the number of defects has been declining.

Jack tells you that in 2014, TRL had some quality issues due to supplier materials experiencing an increasing number of defects. In August 2015 (by the end), the computer started an improvement program to help its suppliers decrease these defects, improve the coordination of purchases, and help improve supplier production policies.

Jack had indicated that the program has appeared to reverse an increasing trend in defects; he would like to predict what might have occurred had this quality program not been executed, what is the trend with the current defects, and what he might expect to occur in the future.

Use trendlines and regression analysis to assist Jack in evaluating this data. Summarize your conclusions in your report.