For 10 paired differences, x-bar_d = 3.5, s_d = 4.0. Test H0: mu_d = 0 vs Ha: mu_d > 0.
What is the t test statistic?
- Acheck_circle
2.77
- B
1.39
- C
0.875
- D
8.75
Explanation
t = 3.5/(4.0/sqrt(10)) = 3.5/1.265 = 2.77.
Carrying Out a Test for a Population Mean
AP Statistics· difficulty 1/5
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