Consider an experiment in which adult laboratory mice were fed one of three diets: high fat, low fat, and a control diet. The mice were weighed, received these diets for 2 weeks, and then were weighed again. The table below shows the results of the experiment.
Diet Gained weight Lost weight
High Fat 79 21
Low Fat 30 69
Control 70 30
Determine whether there appears to be a statistically significant relationship between diet and weight gain or loss, we would conduct a χ2 analysis. When performing this analysis, which of the values below is closest to the number of degrees of freedom we would use?
Group of answer choices
2
3
4
5
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