Some interface designers want to use Hick-Hyman Law to model the reaction time for recognizing warning signals. They have measured that it takes an average reaction time of 900 milliseconds (msec) when differentiating between 16 warning displays. When the number of warning displays decreases to 4, the average reaction time decreases to 400 msec. What will be the average reaction time (in msec) if using a total of 8 warning displays? Show your calculations