Given:
The median is 31.2 hours.
We were to confirm if the 55th percentile is less than 30 hours.
Since, the median is of 31.2 hours, thus, the 50th percentile is 31.2 hours.
The 55th percentile is above the 50th percentile, thus, it is above 31.2 hours, and statement is false.
Hence, the statement is False.