The study was conducted on 20 samples of BOL Management Department {BINUS Online Learning] students from a population of 1000 students to nd out their average expenditure in one month. From the 20 students. it was found that the average monthly expenditure was g. 500,000 with a standard deviation of 39. 100,000. With a 95% condence interval, estimate the average monthly expenditure interval of all BOL Management (BINUS Online Learning} students