The text outlines the process of hypothesis testing, particularly focusing on the null hypothesis significance testing (NHST) approach and the chi-squared test. Hypothesis testing involves comparing e...The text outlines the process of hypothesis testing, particularly focusing on the null hypothesis significance testing (NHST) approach and the chi-squared test. Hypothesis testing involves comparing empirical data against a null hypothesis, which researchers aim to reject to support an alternative hypothesis. The chi-squared test is used to compare categorical variables, as demonstrated by examining credit card usage differences between genders.