9. The Environmental Protection Agency's (EPA) standard for mercury levels in tap water is that it should not exceed 2 mcg/L. The following data are mercury levels from 32 randomly chosen homes in a city in mcg/L. 2.25 1.84 2.15 2.11 2.02 2.27 2.2 2.34 1.74 2.29 1.87 1.84 2.36 1.79 1.94 2.1 2.21 2.31 1.74 1.83 1.96 2.21 1.86 2.27 1.85 2.13 2.15 1.89 2.15 2.11 2.12 2.24 Test to determine if the city's mean mercury level exceeds the EPA's standard using a = 0.025. Please give both a critical value and a prob-value in your analysis