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Test the hypothesis, using linear methods,that average body weight is the same for two independent diagnosis groups from one hospital. Group 1 data [132, 145, 124, 122, 165, 144, 151] and Group 2 data [ 141, 139, 172, 131, 150, 125. Assume normal distribution, with equal variance in the two groups and conclusion for a=0.05.

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