The father of a senior high school student lists down the expenses he will incur when he sends his daughter to the university where he want her to study. He hypothesis that the average tuition fee is at least Php 20,000 per semester. He knows the variable of interest which is the tuition fee is measured at least in internal scale of specifically in the ratio scale. He assumes that the variable are unknown. The father asks at random 25 students of the university about their tuition fee per semester. He is able to get an average Php 20,050 with a standard deviation of Php 500​