Question: A random sample of 150 students attending Iowa State University has a mean age of 20.3 years and a standard deviation of 1.2 years, while a random sample of 110 students attending the University of Iowa has a mean age of 21.1 years and a standard deviation of 1.5 years. Discuss whether we can conclude that the average age of students at the two universities are not the same. (Calculations not required.)