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The table shows the midterm and ?nal examination test scores for 10 students from a differential equations class, where x denotes the midterm scores and y denotes the ?nal scores.
x
68
87
75
91
82
77
86
79
y
74
89
80
93
88
97
95
92
(a) At 95% con?dence level, test whether X and Y are independent.
(b) Find the p-value.
(c) State any assumptions you have made in solving the problem.
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