Question: Suppose a major broadcasting company wants to determine if socio-economic status (SES) is related to preference for a given network news program. One hundred individuals are classified according to two variables: SES and which network they prefer. Based on the following data, is there a significant relationship between SES and network preference at the 5% significance level?

SES NETWORK PREFERENCE

ABC CBS

Working class 10 20

Middle Class 15 16

Upper Class 25 14