chi-square, clinical question #biostatistics #shorts

The chi-square test is a non-parametric statistical test used to determine whether observed categorical data differ significantly from expected frequencies or whether two categorical variables are independent of each other. It is widely used in clinical research to analyze associations among categorical data, making it crucial for research involving non-numeric variables. The test is valid when the test statistic follows a chi-squared distribution under the null hypothesis. #chisquaretest #statistics #DataAnalysis #hypothesistesting #statisticalmethods #researchmethods #quantitativeresearch #datascience #StatisticalSignificance #academicresearch