ASSESSMENT OF CUSTOMERS’ SATISFACTION ON PROVISION OF QUALITY OF ELECTRICITY SERVICES AMONG HOUSE HOLDS IN DAR ES SALAAM: A CASE STUDY OF UBUNGO DISTRICT BY AGNESS BERNARD KALINGA A Dissertation Submitted in Fulfillment of the Requirement for the Degree of Master of Public Administration (MPA) of Mzumbe University in Dar es Salaam Campus College i 2017