A veterinary nutritionist developed a diet for overweight dogs.
The total volume of food consumed remains the same, but one-half of
the dog food is replaced with a low-calorie "filler" such as canned
green beans. Six overweight dogs were randomly selected from her
practice and were put on this program. Their initial weights (in
pounds) were recorded, and they were weighed again after 4 weeks.
Compute a 95% confidence interval for the average difference in
weight for Before - After with this diet.
Before | 42 | 53 | 48 | 65 | 40 | 52 |
After | 39 | 45 | 40 | 58 | 42 | 47 |
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