Question

5. Mark’s class just took the admission test for business school and averaged 87.05. Chapter 10 Data Set 2 contains the population of scores for the 10 other classes in Mark’s university. How did Mark’s class do?

Class 1	Class 2	Class 3	Class 4	Class 5	Class 6	Class 7	Class 8	Class 9	Class 10
78	81	96	85	88	78	90	79	96	86
77	78	97	90	88	82	86	93	87	89
78	93	88	88	94	92	82	89	92	94
83	81	78	75	77	96	83	93	84	75
79	82	88	89	84	99	87	80	85	77
82	83	93	89	85	81	89	96	79	85
77	83	77	85	82	96	95	99	89	76
83	92	80	89	82	100	99	87	90	89
93	97	87	83	96	93	92	75	80	93
86	86	89	98	81	75	80	95	99	86

Answer 1

Among the p-values, Class 1 has P-value less than 0.05 level of significance. Hence, we can conclude that excluding class 1 the remaining 9 classes have the same average score of the admission test with Mark’s class at 0.05 level of significance.