This quiz: 9 point(s) E Quiz: Chapter 9 Review Quiz Question 6 of 9 possible (9.1-9.2) (9) This question: 1 point(s) possible Submit quiz A paint manufacturer made a modification to a paint to speed up its drying time. Independent simple random samples of 11 cans of type A (the original paint) and 9 cans of type B (the modified paint) were selected and applied to similar surfaces. The drying times, in hours, were recorded. The summary statistics are as follows. Type A Type B X1 =76.3 hr X2 = 65.1 hr S1 = 4.5 hr S? = 5.1 hr n1 = 11 n2 = 9 The following 98% confidence interval was obtained for H, - H2, the difference between the mean drying time for paint cans of type A and the mean drying time for paint cans of type B. What does the confidence interval suggest about the population means? 4.90 hr