Do shoppers at the mall spend the same amount of money on average the day after Thanksgiving compared to the day after Christmas? The 47 randomly surveyed shoppers on the day after Thanksgiving spent an average of $127. Their standard deviation was $40. The 54 randomly surveyed shoppers on the day after Christmas spent an average of $132. Their standard deviation was $37. What can be concluded at the a = 0.05 level of significance? For this study, we should use t-test for the difference between two independent population means a. The null and alternative hypotheses would be: Ho: p1 H: 1 b. The test statistic t = p2 u2 (please show your answer to 3 decimal places.) mal pl