Relationships · One population mean
One-Sample t-Test
Is the population mean meaningfully different from a prespecified benchmark?
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The big picture: One-Sample t-Test
Is a population mean meaningfully different from a prespecified benchmark?
Why a policy analyst should care
A policy benchmark becomes analytically useful only when it is defined before seeing the data and compared with a population mean using both magnitude and uncertainty.
Follow the idea from the opening question to a practical decision. These are the conceptual moves this module will develop:
1 Question Is the population mean different from the benchmark?
2 Explore Move the mean, variability, and sample size
3 Formalize Standardize the mean difference by its uncertainty
4 Transfer Defend the benchmark and the population
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