I took a sample to determine if users preferred one of 3
different designs (A, B, and C). Of the 740 people
sampled, 300 replied "no preference", 160 preferred
prototype A, 130 B, and 150 C.
Is there a significant difference between the protoypes? If
so, which ones? Which test do I use? How do I handle
the "no preference" data? I need help.
Thanks,
Sig
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