(Solved): 1. AMOLED phone screens are subjected to a response time testing before they are sold to manufactur ...

1. AMOLED phone screens are subjected to a response time testing before they are sold to manufacturers. Results from the last samples are shown in the table. Create the necessary control chart(s) and determine whether the process is under control or not. If not, determine what the problem is and what needs to be done. Sample 1 Unit 1 71.1 70.6 70.3 Unit 2 70.8 70.7 70.7 73.5 Unit 3 | Unit 4 73.5 71.3 70.8 71 | 72.2 73.1 73.6 73.7 Unit 5 70 72.6 71.9 72.4 74.2