Hello Allstat,
I'm hoping someone can help me with the following query.
I have been asked to work with a version of a Net Promoter Score based on a
10 point scale - In this case the NP score is the percentage scoring 9 or
10 minus the percentage scoring 6 or under. As a result the NP score can
be between -100% and +100%.
What would be an appropriate significance test to test the difference
between two such scores?
Thank You
Dewi
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