could you help giving me explanations on this problem ? Thank you !

Please use R programming . no transformations of the responses are needed !

A company markets its products by direct mail. An experiment was conducted to study the effects of three factors on the customer response rate for a particular product. The three factors are A = type of mail used (3rd class, 1gt class), B = type of descriptive brochure (color, black-andwhite), and C = offer price ($19.95, $24.95). The mailings are made to two groups of 8,000 randomly selected customers, with 1,000 customers in each group receiving each treatment combination. Each group of customers is considered as a replicate. The response variable is the number of orders placed. The experimental data is shown below. 644 Solutions 'om Montgomery, D. C. (2012) Design and Anabeis of Experiments, Wiley, NY Coded Factors Number of Orders Run A B C licate l licate 2 l - 50 54 2 + - 44 42 3 - + - 46 43 4 + + 42 43 5 - - + 49 46 6 + - + 48 45 T - + + 4? 43 8 + + + 56 54 Factor Levels Low {-1) High 5+1) A (class) 3rd 1st B (type) BW Color C ($) $19.95 $24.95 (a) Analyze the data from this experiment. Which factors significantly affect the customer response rate? (b) Analyze the residuals from this experiment. Are there any indications of model inadequacy? (c) What would you recommend to the company