Given the function f(x) = 3x - 2| +6, for what values of x is f(x) = 18? Ox= -2, x=-8
O x= -2, x = -6
O x= -2, x = 6
O x= -2, x = 8

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables