Task: Translation
Input (English): English sentence: By combining information from the experiment with information about the households, Costa and Kahn (2013) used a series of statistical models to estimate the treatment effect for very specific groups of people.
Output (Igbo): Site na ijikta mụma si nnwale ozi banyere ezinụl, Costa and Kahn (2013) na-eji a usoro nke mgbak na mwepụ ụdị na-eme atụmatụ na gwụgw mmetụta maka ihe aha iche iche nke ndá»‹.