Statistic= This quiz: 9 point(s) Quiz: Chapter 9 Review Quiz (9.1-9.2) (9) Question 6 of 9 possible This question: 1 point(s) possible Submit quiz 6 of 6 ques me 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. heets and Type A Type B X1 = 76.3 hr X = 65.1 hr S, = 4.5 hr S2 = 5.1 hr ritten work ng = 11 n =9 20 of 20 que rces Library The following 98% confidence interval was obtained for , - 2, 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? Quizzes 4.90 hr