system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Not true about chi-square test is ?
assistant
The correct answer is  Ans is 'c' i.e., Directly measures the strength of association Advantages of chi-square test o It can be applied to find the association or relationship between two discrete attributes when there are more than two class or groups as happens in multinominal samples. o It can also measure the significance of difference between two propoion. o Chi square goodness offit" (one sample test) --> this allows us to compare a collection of categorical data with some theoretical expected distributions. This test is used in genetics to compare the results of a cross with the theoretical distribution based on genetic theory. Disadvantage o Chi - square test tells about the presence or absence of association, but it does not measure the strength of association.