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Sample Statistic refers to the descriptive measure about a sample that is being observed from a population. The goal is to make a statement or inference about a population with a reasonable amount of confidence.
Examples of sample statistics for stocks include: median sales, standard deviation of net income per share or mean debt-to-equity ratio.
For context, the following saying applies to a related term population parameter, "The population parameter is to a population as a sample statistic is to a sample."
As you can see, this clarifies the distinction between the sample and what is being studied.
Guy: It's a sector-neutral beta from a
3-year rolling regression.
Rex: That's your sample statistic. May I ask, what drives you to be like this Guy?
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Sample. It describes the procedure of sampling instead of what is being measured.
Still unclear on Sample Statistic? Check out the Quant 101 Series of financial modeling tutorials in Excel.
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