Examlex
Juan is applying magnetic pulses to the brains of his research participants to temporarily deactivate a brain region. Which of the following techniques is Juan using
Population Variances
A statistical measure that represents the dispersion or spread of a set of data points in a population.
Profit Margin
A financial ratio, often expressed as a percentage, that compares a company's net income to its sales. It reveals how much profit a company makes for each dollar of its sales.
Sample Variances
The measure of spread within a sample dataset, calculated as the sum of squared deviations from the sample mean divided by the number of observations minus one.
Equal-variance T-test
A statistical method used to determine if there is a significant difference between the means of two groups which are assumed to have the same variance.
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