1. Thermostats are subjected to rigorous testing before they are shipped to air conditioning technicians around the world. Results from the last five samples are shown in the table. Draw and R Chart and an x-bar chart. Based on the charts is the process under control? (20 Points)Sample173.570.872.273.671.0271.371.073.172.772.2370.072.671.972.473.3471.170.670.374.273.6570.870.770.773.571.1