Two different formulas of an oxygenated motor fuel are being tested to study their road octane numbers. The variance of road octane number for formula 1 is and for formula 2 it is Two random samples of size and are tested, and the mean octane numbers observed are fluid ounces and fluid ounces. Assume normality. (a) Test the hypotheses versus using Round your answer to three decimal places (e. g. 98.765). z0