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# Chi-Squared Test

**Use:** The Chi-Squared test is used to determine if there's a **significant association between two categorical variables.** It helps assess whether there is a relationship between the variables or if they are independent.

**Example:** Investigating whether there is an association between gender (male or female) and the preference for a particular brand of soft drink.

<figure><img src="/files/2eoaPbE31sMjFjutXtve" alt=""><figcaption></figcaption></figure>

{% hint style="info" %}
**Column Requirement:** Categorical data for both variables.
{% endhint %}

**Steps:**

1. Select two categorical columns (e.g., gender)
2. Ensure expected frequencies in each cell of the table are not too low (generally above 5) for reliable results.
3. Compute the Chi-squared test statistic.
4. Evaluate the p-value associated with the test statistic.