7. When set at the standard position, AutOpiteh can throw hard balls toward a batter at an average speed of 60 mph. Autopitch devices are made for both major-and minor- league teams to help them improve their batting averages. Antopiteh executives take samples of 10 Autopitch devices at a time to monitor these devices and to maintain the highest quality. The average range is 3 mph. Using control chart techniques, determine control-chart limits for averages and ranges for Autopitch