Answer to Question #60753 in Statistics and Probability for Amy Clark

Question

A manufacturer of coffee vending machines has designed a new, less expensive machine. The current machine is known to dispense an average of 6 fl. oz., with a standard deviation of .2 fl. oz., into cups. When the new machine is tested using 15 cups, the mean and the standard deviation of the fills are found to be 6 fl. oz. and .214 fl. oz. Test H0: σ = 0.2 versus Ha: σ ≠ 0.2 at levels of significance .05 and .01. Assume normality. (Round your answer to 4 decimal places.)

chi-square