Homework Answers
Test statistic for paired t test is given as below:
t = (Dbar - µd)/[Sd/sqrt(n)]
From given data, we have
µd =0
n = 8
Dbar = 77/8 = 9.625
Sd = 15.5374
t = (9.625 - 0)/(15.5374/sqrt(8))
t = 1.752134
Answer: +1.7521
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