E. The test statistic can be calculated using a table: % of Preference E O O- E (0 - E) Shoppers E A 20% 0.2 x 1100 = 220 262 42 1764 8.018 B 20% 0.2 x 1100 = 220 234 14 196 0.891 C 20% 0.2 x 1100 = 220 204 -16 256 1 163 D 20% 0.2 x 1100 = 220 190 -30 900 4.091 E 20% 0.2 x 1100 = 220 210 -10 100 0.455 (observed - expected ) = 14.618 expected E F. From a = 0.05 and k - 1 = 4, the critical value is 9.488. G. There is enough evidence to reject the H. since = 14.618 > 9.488, there is enough statistical evidence to reject the null hypothesis and that the level of significance used to conclude the proportions are not equal