7 The average take-out order size for Ashoka Curry House restaurant is shown. Assuming equal variances, at a = 0.05, is there a significant difference in the order sizes? Customer Order Size Statistic Friday Night Saturday Night Mean order size I1 = 21.73 1) = 25.35 Standard deviation 1 = 4.59 = 6.59 2 Number of orders m1 = 10 n2 = 18 points (a) Choose the appropriate hypotheses. Assume /j is the average order size on Friday night and U2 is the average order size on Saturday night. a. Ho: U1 - 12 = 0 vs H1: /1 - 12 # 0 b. H1: /1 - U2 # 0 vs HD: H1 - 12 = 0 Ob (b) Specify the decision rule. (A negative value should be Indicated by a minus sign. Round your answers to 3 decimal places.) Answer is complete but not entirely correct. Reject the null hypothesis if tcalc > (2.056) x or tcalc