Do you mean the kind that is concreted into the ground, or the kind that you fill with water and or sand?
It's not hard to dig a hole. Rent a concrete mixer from Home depot, buy like 4-5 80 pound bags of concrete (to start with) and if you're doing it with in sections put the 1st section of the pole in the hole and fill the whole up with concrete.
There are different methods. the one I had when I was a youth, (like 20+ years ago), came in 2 pole sections. You put in the first section, make sure it's plumb (laymen terms: vertically level, not horizontal. terms that even HCP can understand: You know when you go to the coast and you see the sunset? Off in the distance on the ocean is something called the
horizon. Just remember that when you hear someone say horizontal.

).
Once it is set a bit, you can start filling the tube (it should be hollow) with concrete to make it even more stable. Then you put the second part on (usually after it's dried/cured) and fill it with more concrete.
You should be able to put together the brackets for the basketball hoop with a run of the mill socket set.
If it's a basketball hoop with a weighted base, those are pretty straight forward. I bought my niece and nephews one of those 2 Christmas' ago, and put it together for them in no time at all.
It's not terribly difficult HCP, and you don't even really need to have any special skills.
If you can dig a hole, lift 80 pounds into a mixer, use a garden hose to fill a bucket of water (or can figure out how much a gallon is without using a bucket), know how to use and read a level and use a socket wrench, you're set.