[5 pts] Two engineers were asked to estimate the average life of their company's batteries. Engineer 1 set an estimate of 27.5 hours with a standard deviation of 5 hours. On the other hand, engineer 2 estimated the mean to be 31 hours with a standard deviation of 6 hours. If the population mean is 30 hours, what are the mean squared errors of each estimate and which should be selected by the company as the optimal? Mean Squared Error (Engineer 1): Mean Squared Error (Engineer 2): Optimal: Engineer (Answer either 1 or 2) Next MacBook Air