question: A study was done to assess malnutrition among young children. 100 children were selected each from rural and urban areas. Out of these, 30 among rural and 20 among urban were found to be malnourished. which of the following statistical test is used to compare the data sets?
opa: Paired t-test
opb: Chi-square
opc: The standard error of mean
opd: ANOVA