How to prepare Prime Rib by Nuwave

Okay i have spoken with a representative and this is what was said as follows.

Fool-proof Standing Rib Roast
Follow this method for a rib roast that is wonderfully browned on the outside and
medium rare on the inside. Follow medium to well done beef follow the cooking
chart, estimated times.
Serves 6-8
Ingredients:
1 5lb. Standing Rib Roast
1 tsp. onion powder
1 tsp. kosher salt
1 tsp. black pepper
Directions;
1. Let thawed rib roast sit out for ½ hour. Beef needs to be at room temperature.
2. Rub roast with the seasonings.
3. Place on a 1 inch rack. Rib side down. Power level high roast for 15 minutes a pound for rare. 18 minutes medium rare, 20
minutes for medium, 23 minutes for well done.
4. Let stand for 10 minutes before slicing.