The possible synergetic effect of insecticides and herbicides is a matter of concern to many environmentalists. It is feared that farmers who apply both herbicides and insecticides to a crop may enhance the toxicity of the insecticide beyond the desired level. An experiment is conducted with a particular insecticide and herbicide to determine the toxicity of the treatments.
Treatment 1: A concentration of .25 μg per gram of soil of insecticide with no herbicide.
Treatment 2: Same dosage of insecticide used in treatment 1 plus 100 pg of herbicide per gram of soil.

Several batches of fruit flies are exposed to each treatment, and the mortality percent is recorded as a measure of toxicity. The following data are obtained:
Treatment 1 Treatment 2
40.................... 36
28.................... 49
31.................... 56
38.................... 25
43.................... 37
46.................... 30
29.................... 41
18....................
Determine if the data strongly indicate different toxicity levels among the treatments.

PLO at Age 4 Years Experimental group 105.4 118.1 1272 110.9 109.3 121.8112.7 120.3 Control group 9.6 87.3 79.6 76.879.6 98.2 88.9 709 PLQ at Age 4 Years Experimental group 110.9 120.0 100.0 122.8 1218 112.9 107.0 1137 103.6 Control group 87.0 77.0 96.4 100.0 103.7 61.2 911 87.0 76.4