(d) Suppose the comparison had been done using a dummy variable (coded as 1 for coupon users and 0 otherwise) rather than the variable Coupon. Give the values of b0, b1, and the t-statistic for the estimated slope. (Round to two decimal places as needed.)

= Homework: HW CH26 Question 2, 26.1.46 HW Score: 64.68%, 3.88 of 6 points Part 6 of 8 Points: 0.5 of 1 Save A department store sampled the purchase amounts of 50 customers. Half the customers in the sample used coupons. The data is coded as - 1 for those who did not use a coupon and + 1 for those who did. The plot to the right shows the data and the least squares regression line. Answer parts (a) through (d). 300- 200- Total Purchase Amount Term Estimate Std Error t Ratio p 100- Intercept 197.26 7.15 27.59