need help finding the critical values

Find the critical value(s). Round to three decimal places. If there is more than one critical value, separate them with commas. Critical value(s): E] How much is in that can? A machine that lls beverage cans is supposed to put 12 ounces of beverage in each can. Following are the amounts measured in a simple random sample of eight cans. 12.09 11.98 12.16 12.03 12.12 12.20 12.10 12.18 Send data to Excel Perform a hypothesis test to determine whether the mean volume differs from 12 ounces. Use the u=0.01 level of significance and the critical value method