Question: 3) For the following PASS/FAIL data in two groups (A & B), would a chi-square test be a valid approximation of Fisher's exact test

3) For the following PASS/FAIL data in two groups (A & B), would a chi-square test be a valid approximation of Fisher's exact test of two proportions? Why or why not? [Previous Exam Q] Group A PASS 70 FAIL 0 Totals 70 Group B Totals 20 10 30 90 10 100 4) I want to use a chi-square test to see if highest level of education (less than high school; high school; undergraduate degree; graduate degree or above) is associated with number of siblings (no siblings; one sibling; two or three siblings; four or more siblings). a) How many degrees of freedom would that chi-square test have under the null? b) What would be the corresponding critical value?

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