Question

In an air pollution study, a random sample of 200 households was selected from each of 2 communities. The respondent in each house was asked whether or not anyone in the house was bothered by air pollution. The responses are tabulated below (given x2 (0.05) = 3.841) : community yes no total i 43 157 200 ii 81 119 200 total 124 276 400 can the researchers conclude that the 2 communities are bothered differently by air pollution ? (a = 0.05)

Answer 1

Good question but can't understand