Suppose We Artificially Categorize Populations as Approximately Normal or Not

question 20

Essay

Suppose we artificially categorize populations as approximately normal or not, and samples as large or small. This categorization results in 4 categories:
a) Small samples from an approximately normal population
b) Large samples from an approximately normal population
c) Small samples from a population that is not approximately normal
d) Large samples from a population that is not approximately normal What, if anything, can be said about the shape of the sampling distribution of for each of these 4 situations?

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Definitions:

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A measurement of the profitability and effectiveness of marketing efforts, calculated by dividing the incremental financial gain from marketing by the cost of the marketing activities.