Question: Super Vending machines company is to install soda pop machines in elementary schools and high schools. The market analysts wish to know if flavor preference and school level are independent. A random sample of 75 students was taken. Their school level are independent. A random sample of 75 students was taken. Their school level and soda pop preference are given as follows:

a. Is school level related and flavor preference related? (a=0.5)

b. What is the strength of the relationship between school level and pop preference?