Correct Answer!!!

You have correctly identified this series as an absolutely convergent p-series.

A general form of a p-series is

¥
å
n = 1 
1
np
which converges if p > 1 and diverges if p £ 1. Since in our case the series has p = 2.5 > 1, the series converges. Moreover, since the series has positive terms, its convergence implies .