Hello all,
I have googled this and have struggled to find an answer.
I am working on a project where i need to compare two incremental sales (campaign %) - (control %) where we assume that the controls are actually different (otherwise we'd use the same control across the two campaigns.
eg.
Campaign1 - SR 10% volume 100,000
Control1 - SR 6% volume 10,000
Incremental Sales rate1 - (10% - 6%) = 4%
Campaign2 - SR 16% volume 30,000
Control2 - SR 10% volume 3,000
Incremental Sales rate2 - (16% - 10%) = 6%
is there a way of statistically comparing 4% and 6%? do we use the control volumes as N1 and N2?
many thanks,
Rupert Richardson
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