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Old 15-11-2015, 01:59 AM
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i dun think a typical fmcg or auto firm is interested in this sort of thing....they just want simple reports that help them make sales & marketing decision. their main aim is to make money, not do modelling for modelling sake.

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Originally Posted by Unregistered View Post
Knowing how to click on statistical software is different from knowing how to use regression analysis.
Did u do any diagnostic tests to check for normality, multicollinearity, and homoscedasticity?
if the model failed any of the test, how do u proceed?
How do u choose the the independent variables? by experience? based on empirical result? stepwise or some other forms of selection process? Is the model variation in discrete selection process a concern? If so, should I use penalty regression instead?

And that is just the model building stage. There are many more other issues to take note of at the inference stage.
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