An experiment was conducted to compare two diets A and B, designed for weight reduction. Two groups of 50 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 30-day period. The means and standard deviations of the weight-loss measurements (in kg) 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.

Question

An experiment was conducted to compare two diets A and B, designed for weight reduction. Two groups of 50 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 30-day period. The means and standard deviations of the weight-loss measurements (in kg) 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.

Quizplus · Accepted Answer

The Answer of An experiment was conducted to compare two diets A and B, designed for weight reduction. Two groups of 50 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 30-day period. The means and standard deviations of the weight-loss measurements (in kg) 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.

An Experiment Was Conducted to Compare Two Diets a and B