Suppose that a regulatory agency wants to propose that congress cut federal funding to a metropolitan area if that area's mean level of nitrogen oxides (nox) is unsafe—that is, if it exceeds 5.0 ppm. the agency gathers sample nox concentrations on 60 different days and calculates a test of significance to assess whether the mean level of nox is greater than 5.0 ppm. what is a type i error in this context? choose the correct answer from the following choices, and then select the submit answer button. believing that the mean level of nox is 5.0 ppm or less when it really is believing that the mean level of nox exceeds 5.0 ppm when it really does not believing that the mean level of nox exceeds 5.0 ppm when it really does believing that the mean level of nox is 5.0 ppm or less when it really is not