A statistics teacher claims that, on the average, 5% of her students get a grade of A, 15% get a B, 30% get a C, 30% get a D, and 20% get an F. The grades of a random sample of 130 students were...

A statistics teacher claims that, on the average, 5% of her students get a grade of A, 15% get a B, 30% get a C, 30% get a D, and 20% get an F. The grades of a random sample of 130 students were recorded. The following table presents the results. Test the hypothesis that the grades follow the distribution claimed by the teacher. Use the 0.01 level of significance and the P-value method with the TI-84 Plus calculator.