Learn about t-test assumption, including scale, sampling, normality, sample size, and variance equality, for accurate statistical analysis and reliable results.

The art and science of modeling returns of financial assets is forever unsatisfying because no one model fully captures the true behavior of asset performances. The one-year distribution, in short, ...

When business researchers analyze data, they often rely on assumptions to help make sense of what they find. But like anyone else, they can run into a whole lot of trouble if those assumptions turn ...