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QUESTION 11 A study examined the effect of protein consumption on weight gain in rats. Investigators obtained 14 female rats and randomly assigned 7 of
QUESTION 11
- A study examined the effect of protein consumption on weight gain in rats. Investigators obtained 14 female rats and randomly assigned 7 of them to a low-protein diet and the other 7 in a high-protein diet. After 60 days, the weight gained by each rat was recorded (in grams). Here are the summary findings, displayed as "mean (standard deviation)":
- Low-Protein DietHigh-Protein Diet
- 101.3 (20.6)127.5 (21.1)
- Given that the degrees of freedom for the appropriatetprocedure is approximately 12, what is a 95% confidence interval forHigh-Low?
1.9 to 50.5 grams
15.1 to 37.3 grams
20.6 to 21.1 grams
101.3 to 127.5 grams
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Statistics Unlocking The Power Of Data
Authors: Robin H. Lock, Patti Frazer Lock, Kari Lock Morgan, Eric F. Lock, Dennis F. Lock
1st Edition
0470601876, 978-0470601877
