Examlex
Why do energy needs often decrease with advancing age?
One-sample T Test
A statistical test used to determine whether a sample mean significantly differs from a known or hypothesized population mean.
Sample Mean
The average value obtained from a sample, calculated as the sum of all sampled observations divided by the number of observations.
Standard Deviation
A measure that quantifies the amount of variation or dispersion of a set of data values.
Null Hypothesis
In statistical hypothesis testing, the default assumption that there is no significant difference or effect.
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