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Paired-/Related Samples T-test Use it to test whether there is a difference between the two conditions(note: conditions...

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Statistics

Paired-/Related Samples T-test

Use it to test whether there is a difference between the twoconditions(note: conditions must be RELATED-participants provide ineach condition).

You are interested in the relationship satisfaction of youngadults before and after they go off to college/university, whichseparates them from their sweetheart. You asked four couples torate the satisfaction of their relationship (on a scale of 0-50)before leaving for school and then again after a semester. Here arethe data:

Pair Before After

1 40 32

2 38 31

3 36 30

4 42 31

1. State the null and alternative hypotheses as well as yourcriterion:

2 .State your assumptions

3. Calculate difference scores, the sum of difference scores andthe sum of difference scores squared:

4. Calculate t

5. Figure out your degrees of freedom and use this to find thecritical t value

6. Reject or fail-to-reject the null hypothesis and state yourconclusions.

Answer & Explanation Solved by verified expert
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Let difference d before after12Assumption    See Answer
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