A breed of chicken shows codominance foto feather color. One allele codes for black feathers, another codes for wite feathers. The feathers of heterozygous chicken of this breed Will be

Aresearcher created three groups based on participants bmi: normal weight, overweight and obese. the hypothesis being tested is that the three groups differ in the mean number of artificially sweetened drinks consumed weekly. which statistical test might the researcher use, assuming a reasonably normal distribution of values.