Show all your work. No work, No credit !! The following figures refer to the amount of sugar ( in ounces ) filled by a machine in 6 randomly selected bags {15.7, 15.9, 16.3, 16.2, 15.7, 15.9} Test the following statement : Is the True mean amount of sugar filled in a bag less than 16 ounces ? Use a = 0.05 ; assume normal population. Set up the hypotheses; FTNM Calculate the test statistic; Find the critical value; Make decision : reject or not to reject the Null hypothesis; Conclusion statement