Which of the following is true about chi-square test:
|A||Tests the significance of difference between two proportions|
|B||Also be used when more than two groups are to be compared|
|C||Both A and B.|
|D||None of the above|
Ref: High Yield Biostatistics, Pg: 40 - 51
Chi-square test is used for testing the significance of difference between two proportions. Its advantage is that it can also be used when more than two groups is to be compared.