Categorical Dependent and Categorical Independent Variables

Moving on, let's take a look at the third hypothesis. To test the relationship between the categorical dependent variable and categorical independent variable, we can use the chi squared test.

For hypothesis 3, we define the following:

• Null hypothesis: The campaign outcome has no relationship with clients who never married.

• Alternate hypothesis: The campaign outcome has a relationship with clients who never married.

In the following exercise, we will leverage R's chi-square test function to validate the hypothesis..

Exercise 38: Hypothesis 3 Testing for Categorical Dependent Variables and Categorical Independent Variables

In this exercise, we will perform a statistical test using the chi-squared test. We use the chi-squared test because both the independent and dependent variables are categorical, particularly when testing the relationship between y and marital status.

Perform the following steps:

1. Import the required libraries and create...