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Used to test whether there is a significant mean difference between two sets of paired data sets.
Define the Hypothesis
Define matched paired test (new variable is D)
d=x1-x2
find Degrees of freedom
D=n-1
Compute p-value (use technology)
complete t-test
t=(d-M)/[sd/sqrt(n)]
Evaluate null hypothesis and also conclude comparing P-value to
significance level. You can only
REJECT or FAIL TO REJECT the Null
Choose significance level
Common significance levels
.01,.05,.1 but any number between 0 and 1