Display rules for showing grief or anger are universal and the same for each culture

The ideal number of focus group participants is 16

Indicate whether this statement is true or false.

One of your high school teachers invites you back to your high school to give a talk to the students in her economics class. Your major in econ and your excellent performance in her class are the reasons she would like to have you make some encouraging remarks to her current class. The information she has given you and your past relationship with her should help you infer how to approach the topic.

Answer the following statement true (T) or false (F)