Question 19

(45) Thi Thoi X Practice Mid X Practice Mid X C Bleaching Cl x C Candies Are X C The Next Tw X G The nexttwo X f (1) Facebook X + X -> C @ File | C:/Users/PHUONG%20UYEN/Downloads/Practice%20Midterms%202000.pdf G . .. (E) fail to reject Ho at the 4% level of significance, since 0 is not contained in the 96% confidence interval. 19. Bleaching chemicals are used in the pulp and paper industry to increase the brightness of the paper that is produced. Five chemical agents were studied to determine their effect on the brightness of paper produced from pulp treated with the chemical. The data are shown below: Agent A Agent B Agent C Agent D Agent E 86 73 91 88 80 76 81 78 83 92 79 85 86 75 87 84 80 82 72 90 85 77 TA = 86.25 TB = 79.67 TC = 85.80 XD = 81.33 TE = 77.25 SA = 4.92 SB = 6.11 SC = 5.22 SD = 4.93 SE = 4.27 We would like to conduct an analysis of variance at the 5% level of significance to compare significance? the means of the five populations. What is the critical value for the appropriate test of (A) 2.84 (B) 2.66 (C) 2.96 (D) 2.81 (E) 2.93 30