A matched pair experiment yielded the following differences: (4, -2, 3, 3, 3, -2, 0, 2, 0, 2) (4, 0, -1, 3, -1, 4, 3, 2, 3, 0) What is the value of the t-test statistic?

University of Ilorin STA121 2025 past question

1. -0.3946
2. -0.4
3. 0.3946
4. 0.4

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