Astudy was conducted by a local high school with a graduating class of 450 to determine what factor most influenced the students' choice of which university to attend after high school. 98 students participated in the study; 58 students said that the location of the university was the most important factor in their decision. the results were published stating that 266 students in the graduating class would consider location as the greatest influence in determining which college to attend. what is the problem with this study?

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?