Back to school? Best known for its testing program, ACT, Inc., also compiles data on a variety of issues in education.

In 2012 the company reported that the national college freshman-to-sophomore retention rate at four-year colleges was about 80.0%. Consider colleges with freshman classes of 400 students. Use the 68–95–99.7 Rule to describe the sampling distribution model for the percentage of those students we expect to return to that school for their sophomore years.

Do you think the appropriate conditions are met?