Question: Marks for the same final exam in a certain senior statistics course for the two batches D1 (six students) and E1 (eight students) are given

Marks for the same final exam in a certain senior statistics course for the two batches D1 (six students) and E1 (eight students) are given as: Marks for students in Batch D1: 75, 56, 63, 70, 58, 74 Marks for students in Batch E1: 63, 85, 77, 80, 86, 76, 72, 82 Use the Mann-Whitney (U) test at the 0.05 level of significance to test whether the marks for Batch E1 students are on average higher than those of Batch D1 students

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