Costco sells paperback books in their retail stores and wanted to examine the relationship between price and demand. The price of a particular novel was adjusted each week and the weekly sales were recorded in the table below. Management would like to use simple regression analysis to estimate weekly demand for this novel using the price of the novel. The 95% condence interval that estimates the average weekly sales for a price of $9 is o (1.96, 13.16) A (7.26, 7.86) o (5.93, 9.19) o (1.26, 13.86) A chocolate chip cookie producer claims that its cookies average 3 chocolate chips and that the distribution follows the Poisson. A consumer group wanted to test this claim and randomly sampled 150 cookies. The resulting frequency distribution is shown below. Chips per Cookie The expected number of cookies from this sample that will exactly ve chips is b 15.12 C', 19.32 b 23.60 c 26.17