statistics problem 8

(22 points) For each part, select the best response. Two online retailers offer a particular style of webcam for sale. The prices of these cameras vary day by day. Consider two groups: Group #1 consists of consumers who purchased a camera from retailer #1 during the past three months and Group #2 consistes of consumers who purchased a camera from retailer #2 during the same period of time. A 99% confidence interval for M1 - M2, the difference in population mean sale prices, is 30 to 60 dollars. (a) The confidence interval would tend to support the claim that, on average, consumers who purchased a camera from retailer #1 spent dollars more than those who purchased a camera from retailer #2. A. less than 20 O B. at least 32 C. more than 65 O D. at most 40 O E. at least 25