three different washing solutions are being compared to a study their effectiveness in retarding bacteria growth in fire-gallon milk containers. the analysis is done in a laboratory, and only three trials can be run on any day. that means each solution is being measured once each day. observations are taken for four days, and the data shown here

solution days

1 2 3 4

1 40 15 25 20

2 45 12 22 18

3 25 6 5 2

Does bacteria growth differ for the three washing solutions? If yes, which solution(s) would be best for minimizing bacteria growth.