The MBB s probably wanting you to use a Chi Sq table rather than
another method.If you look at forecasting the business does not want to hear about
P values as they don’t understand them. It may be worth
transforming the language into one that they understand like %
accuracy by month, quarter, year etc and keep the stat stuff in your
pocket. At the end of the day so what if you detect a statistically significant
difference in means – what are you going to do next ? You need to
identify key drivers like market, product, seasonality, sales forecast
accuracy, finance cut off rules, Marketing promotions etc etc.Good luck.Adam
.
