All 55 delegates that attend the constitutional convention signed the final document True or false

No this statement is not true.

Explanation:

According to the right statement, all the 55 delegates who attended the constitutional convention did not sign the final document but only 39 signed the final documents.

In this meeting (held at Independence Hall in Philadelphia, Pennsylvania) it was decided that to run the state in a very sting and effective manner, there is a need to form a new and strong government instead of amending the existing articles of confederation.