Need to know more about Internet speed

I am paying for internet high speed 3 MBPS
just did a speed test my internet speed is Ping 155 download 0.56 upload 0.31
This is DSL
I have just called Windstream and there looking in to it.
My Qustion is where should I be at with 3 Mbps?
 
If you're paying for 3Mbps and only getting 0.5, then you're getting ripped off. The provider doesn't have to (and probably never will) provide the whole 3Mbps, but there is an acceptable limit.
 
Back