Ocheni, from Kogi state is replacing James Ocholi, a late minister of state for labour and productivity, who died in a road crash in March 2016.
Hassan from Gombe is the replacement for Amina Mohammed, former minister of environment, who is currently at the United Nations.
Ocheni obtained a doctorate degree in public finance from the University of Nigeria, Nsukka in 2004.
He is a fellow of the Association of National Accountants of Nigeria and that of the Institute of Chartered Economists of Nigeria.
Hassan is the former chairman of the defunct Congress for Progressive Change (CPC) in Gombe. He is also one of the non-career ambassadorial nominees whose appointment the senate confirmed earlier.
The nominees fielded questions from the senators during the screening.
They were confirmed when their nominations were put to a voice vote by Senate President Bukola Saraki.
The confirmation could be seen as a sign of improvement in the relationship between the executive and legislative arms of government.
