How is the rate of erosion affected by runoff ?
a)runoff increases the rate of erosion
b)runoff decreases the rate of erosion
c)runoff does not affect the rate of erosion
d)runoff lessons erosion mountainous regions

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.