Number 8 is the question I need to know

How do you date a sample of rock that you suspect as being one of the earliest on earth

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.

If there is another new infectious disease somewhere in the world, what do you think canadian officials should do