What is the null hypothesis of the test design?

An advertiser wants to know whether campaign strategy A had significantly different performance than campaign strategy B in terms of additional sales. The campaigns both ran at the same time against mutually exclusive portions of the advertiser’s customer base.

What is the null hypothesis of the test design?
A . Sales Lift A = 0, Sales Lift B < 0
B . Sales Lift A = Sales Lift B
C . Sales Lift A >= Sales Lift B
D . Sales Lift A > 0, Sales Lift B = 0

View Answer

Answer: C