Sample Size calculation:
Estimated prevalence: 13.2%
Desired Precession: 5
Design effect: 1.7
Average Household size: 5.44
% of Under-5 Children: 12.68
% of non-responder household: 5
If we input all the information in ENA software 2010 and we got Sample size= 511 in ENA 2011 it is 552
Sample Size calculation:
Estimated prevalence: 11.8%
Desired Precession: 5
Design effect: 2
Average Household size: 5.70
% of Under-5 Children: 13.77
% of non-responder household: 10
If we input all the information in ENA 210 we got Sample size= 503 in ENA 2011 it is 548
These differences are large and not slight because they are almost a change of 10%.
If we have to explain to the client what is the justification to be given for the software to give a difference so large?
