A producer of outdoor clothing used a focus group to obtain information about the demand for fleece jackets with built-in, battery-operated warming panels. At prices of $ 100, $ 90, $ 80, $ 70, $ 60, and $ 50, the focus group demanded 23, 31, 40, 44, 48, and 60 jackets, respectively. Use the Excel Trendline option to estimate a linear demand function and to determine the associated R2 statistic.