What is the value of a misprinted 1995 one dollar bill that has part of the back printed on the front?

U.S. currency is printed in a 3-step process :

The back is printed first and taken to a drying room.

Next the front is printed and then allowed to dry.

Last, the serial numbers and Treasury shield are printed in an overprint press.

So you can see it's virtually impossible for a partialback side to be printed on the front side.

I suggest you take it to a coin show and have a few currency dealers look at it to figure out what you have.