A student believes that no more than 25% (i.e., 25%) of the students who finish a statistics course get an A. A random sample of 100 students was taken. Twenty-six percent of the students in the sample received A's. Test the hypotheses at the 5% level of significance. What is the critical value? What is the calculated Z-test statistic? What are your conclusions regarding the assumption of the proportion of students that make an A in statistics?