can i get help on this please

3. In 1993, researchers proclaimed that listening to Mozart could make you smarter. Dubbed the "Mozart Effect," this conclusion was based on a study that showed college students temporarily gained up to 9 IQ points after listening to a Mozart piano sonata. The experiment consisted of putting students in a room where there was light reading available with a Mozart sonata being piped in. Suppose you wanted to see whether there is a Mozart effect for students at Wissahickon. You plan to use 30 students in your sample