Answer questions 22-24 based on the following information. Two professors at the University of Delaware want to co-author a new textbook in either economics or statistics. They feel that if they write an economics book, in the first year, they have a 50 percent chance of placing it with a publisher and selling 4,000 copies, and a 50 percent chance of not placing it with any publisher (and, therefore, selling zero copy). If placed with a publisher in the first year, they expect to sell 4,000 copies in the second year. If not placed with any publisher in the first year, then, in the second year, there is (1) a 40 percent chance of placing it with a publisher and selling 4.000 copies, and (2) a 60 percent chance of not placing it with any publisher and selling zero copy. Suppose the two professors write a statistics book instead. In that case, in the first year, they have a 40 percent chance of placing it with a publisher and selling 5,000 copies, and a 60 percent chance of not placing it with any publisher (and, therefore, selling zero copy). If placed with a publisher in the first year, they expect to sell 5,000 copies in the second year. If not placed with any publisher in the first year, then, in the second year, there is (1) a 30 percent chance of placing it with a publisher and selling 5,000 copies, and (2) a 70 percent chance of not placing it with any publisher and selling zero copy. For both the economics book and the statistics book, no further possible sales are anticipated beyond the first two years. Answer the following questions. Question 22 1 pts Suppose the professors write an economics book, what are the expected total sales (.e., amount of copies they can sell) over the first two years? Question 23 1 pts Suppose the professors write a statistics book. What are the expected total sales over the first two years? O 6900 None of the answers is correct 4900 8500 4900 8500 Question 24 1 pts Based on the expected total sales over the first two years, should the professors write economics or statistics book? W Statistics book Economics book