Test the hypothesis that the presence or absence of hypertension is independent of smoking habits

In an experiment to study the dependence of hypertension on smoking habits, the following data were taken on 180 individuals:Non-smokers Moderate Smokers Heavy SmokersHypertension 21 36 30No hypertension 48 26 19Test the hypothesis that the presence or absence of hypertension is independent of smoking habits. Use a 0.05 level of significance