The postal mall Prlorlty Mall Express, Prlorlty Mall. F1rgt-CI&EE Mall. or S.ZrGrd Over a perlod of weeks. 18 of each type were melle from the Network Dlgtrlbutlon Center In Atlanta. Georg[a. to Des Molr,eG. Iowa. The total deltvery tlr,e [n wag recorded. MlratEb wag to *form the ANOVA. The results follovv e .25 Total priority Mail standard zss7e 2.266 e. 205 e. ssz e. 866 e. 377 Uglng the ANOVA results. compare the average delver,' tlmeg of the four dlfferent types of mall. Requlred: a. Identlfy the null hypotheGIE and the alternate hypotheslg. Null Opotheglg: Alrr,ate hypotheglg: O Hf At least one mean dlfferent. O Hf. All means are equal. b. What [E the declElon rule? OOS Elgnflcar,ce level. (Round your answer to 2 decimal places.) c. Use the OOS glgnlficance level to test evidence suggests a dlfference In the means for the dlfferent types of mall.