data list/group 1-1 conversion 2-2 freq 3-10.
begin data
002688
010112
102660
110140
end data.
weight by freq.
variable labels group 'treatment'/conversion 'conversion'.
value labels group 0 'original site' 1 'alternative site'/conversion 0 'no' 1 'yes'.
crosstabs group by conversion/cells count row/statistics chisq.