The most accurate information her coach can offer to help encourage Evie to add an anaerobic workout to her fitness plan is:
It burns more calories than an aerobic workout.
While both anaerobic and aerobic workouts have their benefits, anaerobic workouts, such as weight training and high-intensity interval training, can lead to increased calorie burning during and after the workout due to the afterburn effect (excess post-exercise oxygen consumption or EPOC).