Verified answer

Yes, but it will not make a significant difference until you are around 10-15 levels higher then the level required to mine the ore. If you want to see the difference go to one of the tin and copper mines and you will mine 30x faster then most of the players there.

The only exception that i know to this is for mining rune essence, i believe you mine at the same rate no matter what the level.

Hope i helped and happy Runescaping :p

Yes, it will

Yeah, that's the point of gaining XP

In real life, if you have more experience (XP) at something, you tend to do it better. The same goes for RuneScape.

The rate at which you receive ore increases as you level

yes you will mine 2x faster