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Matched Pairs T-Test

Used to test whether there is a significant mean difference between two sets of paired data sets.

Step 2

Define the Hypothesis

Example Video

Step 1

Define matched paired test (new variable is D)

d=x1-x2

Step 5

step 6

find Degrees of freedom

D=n-1

Compute p-value (use technology)

complete t-test

t=(d-M)/[sd/sqrt(n)]

Step 4

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

Matched Pairs T Test

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