A pharmaceutical manufacturer wants to investigate thebioactivity of a new drug. A completely randomized single-factorexperiment was conducted with three dosage levels, and thefollowing results were obtained.

Dosage

Observations

20 g

24

28

37

30

30 g

37

44

31

35

40 g

42

47

52

38

A) A)is there evidenceto indicate that dosage level affects bioactivity? Use

B) if it is appropriate to do so, make comparisons between thepairs of means. What conclusions can you draw