An ad agency tracks the complaints, by week received, about the billboards in its city: This exercise contains only parts a,b, and c. a) The type of control chart that is best to monitor this process is b) Using z=3, the control chart limits for this process are (assume that the historical complaints rate is unknown): UCLc=complaintsperweek(roundyourresponsetotwodecimalplaces).LCLc=complaintsperweek(roundyourresponsetotwodecimalplacesandifyouranswerisnegative,enterthisvalueas0). c) According to the control limits, the process has been