A researcher gave participants a writing test without chocolate and then the following day gave them a writing test with chocolate to see if eating chocolate enhances enthusiasm for writing.

Question 2 of 7

Question 2

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Given the design of the study and the question of interest, which of the following 4 computer outputs is relevant to use?

Paired T-Test and CI Sample N Mean StDev SE Mean Chocolate 10 77.59 23.38 7.39 No Chocolate 10 78 . 02 17.36 5.49 Difference 10 -0.43 11.83 3.74 954 upper bound for mean difference: 6.43 I-Test of mean difference = 0 (vs