A study was measuring the number of micromoles per minute per gram of tissue of a certain enzyme measured in normal Gastric tissue. If mm/m/g was above 1400 the patients were considered high risk. We examined a cohort of 850 people with this type of gastric carcinoma and found that 259 had over 1200 mm/m/g. Conduct a hypothesis test to determine if our population is different from the typically reported 30%. Use the rejection region (critical value) approach with =0.1.