The manager of a shopping mall wishes to expand the number of shops available in the food court He has a market researcher survey the first 120 customers who come into the food court during weekend evenings to determine what types of food the shoppers would like to see added to the food court Complete parts a and b below a The survey has bias Determine whether the flaw is due to the sampling method or the survey itself For biased surveys identify the cause of the error What is the cause of the bias OA Nonresponse B Sampling bias OC Response bias