You are studying the relationship between diets and body weight, as well as gender. You fed both male and female mice with 4 different diets for 2 months. These mice had the same genetic background and the same body weight before the study. They were of the same age and housed in the same room. You measured their body weight after 2 months and recorded the data in the form of the file “MiceBodyWeight.csv” (You should have downloaded this file in lab10).
DietA | DietB | DietC | DietD | |
Male | 20 | 21 | 25.5 | 23 |
Male | 21 | 21 | 24 | 24.5 |
Male | 23 | 22 | 25 | 24 |
Female | 19 | 20 | 22 | 25 |
Female | 19.5 | 19.8 | 23 | 25.5 |
Female | 19 | 20.5 | 22.5 | 26 |
If you want to know the effect of diets on the body weight in male mice only, and the result is statistically significant, you continue to perform a Dunnett’s test, and use Diet A as the control, what is the CI at 95% for the difference between the mean body weights of mice had Diet B and Diet A?
Group of answer choices
[1.197, 5.803]
[-1.199e-14, 0]
[0, 3.5]
[1.966, 4.803]
[-2.303, 2.303]
