A retailer has a limited number of promotional displays to use at the entrance to the store. The building has four entrances, so they want to determine if they should equally distribute the displays, or if there might be a difference in the number of people that use each entrance. Over a period of an hour they observed the following number of people entering through each entrance: 43, 37, 50 and 26. With 95% confidence, can the retailer say that the number of people walking through the doors is not equal?