2. Practice paired observation procedures for the following 6 samples to test if the differences for Company A and Company B is positive. 2 10.0 10.1 Company A Company B Ho: Hint: when calculating differences, include + and - Ha: Hd > 0 1 8.8 8.4 Decision: 3 12.5 12.0 n = crit = 4 9.7 9.3 stat = df = 5 10.0 9.0 mean of differences = standard deviation of differences = 0.363 alpha = 5% α = pvalue= 6 13.2 13

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