In a statistics exam we classif'y the scores according to two criteria. The first is whether an individual's score is below the class median m or not. The second is whether a student is majoring in a...

In a statistics exam we classif'y the scores according to two

criteria. The first is whether an individual's score is below

the class median m or not. The second is whether a student is

majoring in a physical science or mathematics or is a nonscience

major. We observe the following:

Test the hypothesis that there is no association between test

performance and type of major. (Use a= 0.05.)