10.94 Dieting Eight obese persons were placed on a diet for one month, and their weights, at the beginning and at the end of the month, were recorded:

Estimate the mean weight loss for obese persons when placed on the diet for a one-month period. Use a 95% confidence interval and interpret your results. What assumptions must you make so that your inference is valid?

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Weights Subjects Initial Final 1 141 119 2345691 134 114 130 113. 138 117 122 106 6 147 121 7 125 110 8 136 120