a study was conducted among 100 professors from 3 different divisions at a community college, for their promotions based on 3 categories of teaching , research and other collage activities .it is required to test if there is any relationship between the basis for promotion and the given below in the contingency table use 5% significance level

field of

teaching

Basic for promotion business science nursing total

20	10	10
10	10	15
10	8	7

Teaching

Research

others