Question: Consider the following n 5 12 difference scores from two related samples: Difference scores (Di ): +4.8, +1.7, +4.5, 1.2, +11.1, 0.8, +2.3, 2.0, 0.0,

Consider the following n 5 12 difference scores from two related samples:

Difference scores (Di

): +4.8, +1.7, +4.5, −1.2, +11.1, −0.8,

+2.3, −2.0, 0.0, +14.8, +7.8, +1.7 What is the value of the test statistic W if you are testing H0: MD ⩽ 0?

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