Solution :
This is the right tailed test .
Test statistics = 12.5 *
12 / 15.5 = 2.793
df = 11
P-value = P(t(11) > 2.793) = 0.0087
You wish to test the following claim (HQ) at a significance level of a = 0.002. For the context of this problem, d = 22...
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You wish to test the following claim (H1) at a significance level of α=0.002α=0.002. For the context of this problem, d=x2−x1 where the first data set represents a pre-test and the second data set represents a post-test. Ho:μd=0 H1:μd>0 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n=22 subjects. The average difference (post - pre) is ¯d=32 with a standard deviation of the...
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