Cost of Attendance at a Four Year College L5 The US Department of Education wants you to write up a report on the mean cost of attendance for undergraduates in the United States. For the entire population of undergraduate students. the average cost of attendance is normally distributed with a mean of $15,000 and a standard deviation of $5,000. You collect a randomly selected sample of 25 undergraduates. The mean cost of attendance in the sampie is $12,000 and the standard deviation is $8000. i E F - 1point , FE What is the population of interest? The average cost of attendance for 50 undergraduates selected at random 25 undergraduates selected at random The average cost of attendance for undergraduates in the United States Undergraduates in the United States