The administration is hearing complaints from students and parents about the rising cost of textbooks. Financial aid officers from the 16 campuses agree that $300 per semester for textbooks is a critical "breakpoint" for full-time undergraduate students; when textbook costs exceed $300 per semester, a student's finances are significantly stressed. There is concern that , the mean textbook cost per semester for full-time. undergraduate students, is greater than $300. To evaluate the situation, a random sample of 25 full-time undergraduate students are selected and asked their textbook costs for the current semester; the sample results are an average cost of $320.32 with a standard deviation of $54.03. Use this data to test the hypothesis, at the 1% significance level, that the mean semester textbook cost for full-time undergraduate students exceeds $300. (A) Agree (B) Disagree