A study was conducted to assess the magnitude of business that Canadian border retailers were doing with U.S. residents. Forty-one shoppers in border city department stores were interviewed; 24 were U.S. residents, and the rest were Canadian residents. Thirty-five discount store shoppers were interviewed, as were 30 hardware store and 60 shoe store customers. In these three groups, 20, 11, and 32 were U.S. residents, and the remaining shoppers were Canadian residents. Use a chi-square contingency analysis to determine whether the shoppers’ residence (Canada versus U.S.) is independent of type of border city retailer (department, discount, hardware, shoe) for these data. Let α = 0.05.