9.57 A researcher is analyzing the proportion of people who are taking vitamin C as their daily supplement. Previous research studies have determined that not more than 82% of people are doing so. The researcher selects a random sample of 250 people and finds that 215 are taking vitamin C as their daily supplement. Is there enough evidence to justify that more than 82% of people are taking vitamin C as their daily supplement at the 0.05 level of significance?