Kelly Moeller is a manager at ABC publishing INC. She thinks that the prices of physical books and the number of pages are linearly related. The following table shows the data for eight books published last year. Book Price ($) Pages A 6.30 500 B 7.50 700 C 8.50 750 D 6.50 600 E 6.00 560 F 7.00 650 G 5.00 480 H 7.20 680 Please answer the following questions: a. Use the least squares method to develop the estimated regression equation. Please show your computation steps. Otherwise, you will not have grade. b. ABC publishing Inc. is planning to publish a new physical format novel "Great Woods Temple" with 820 pages. Use the estimated regression equation developed in part (a) to predict the price of the novel. Please show your computation steps. Otherwise, you will not have grade. c. At = 0.05, please use t-test to test for the significance of the slope. Please show your computation steps. Otherwise, you will not have grade