What are some common statistical tests used in data analysis and their respective applications?

In data analysis, statistical tests are essential tools for making inferences and drawing conclusions from data. These tests help determine the significance of relationships, differences, or patterns observed in the data. Here are some common statistical tests used in data analysis and their respective applications: 1. t-test: The t-test is used to compare the means of two groups and determine if there is a statistically significant difference between them. It is commonly used when the data follows a normal distribution and the sample sizes are small. 2. Analysis of Variance (ANOVA): ANOVA is used to compare the means of more than two groups. It determines if there are significant differences among the group means and helps identify which specific groups differ from each other. 3. Chi-square test: The chi-square test is used to assess the association between categorical variables. It determines if there ....