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8.51 Are You Dieting? An experiment was con- ducted to compare two diets A and B designed...

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8.51 Are You Dieting? An experiment was con- ducted to compare two diets A and B designed for weight reduction. Two groups of 30 overweight dieters each were randomly selected. One group was placed on diet A and the other on diet B, and their weight losses were recorded over a 90-day period. The means and standard deviations of the weight-loss measure- ments for the two groups are shown in the table. Find a 95% confidence interval for the difference in mean weight loss for the two diets. Interpret your confidence interval.image text in transcribed

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Diet A X=21.3 Diet B SA = 2.6 X-13.4 Sg=1.9

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