Table 14.6 Have Customer Preferences Changed? , 50 E 60 (0; - E;) -10 (0,-E) 100 TYPE OF CANDY BAR A. Mr. Goodbar B. Hershey's Milk Chocolate C. Hershey's Special Dark D. Krackel 93 100 - 7 49 (O - E)/E 100/60 = 1.67 49/100 = 0.49 225/30 = 7.50 4/10 = 0.40 x = 10.06 45 30 15 225 12 10 2 4 From Appendix Table 7 with df = K-1 = 3, we find that the test statistic falls between 9.348 and 11.345; it follows that 0.01