Hi I need help on what is the answer to this problems? Below is the question and other concerns will be in the comment section. I hope you can help me and surely I will give you full positive feedback

.

1. Concentrations of nitrogen oxides and of hydrocarbons (recorded in ug/m3) were determined in 1 1 sites in a certain urban area. At 5% level of significance, test the hypothesis that both classes of air pollutants were present in the same concentration. Assume the data are not normally distributed. Sites Nitrogen oxides Hydrocarbons 1 104 108 116 118 84 89 77 71 61 66 84 83 81 88 72 76 9 61 68 10 97 96 11 84 81