Examlex
One of the major causes of surrogate information error is failure to properly define the research problem.
Formula
A symbolic representation of a principle or a set of mathematical relations, often used to solve problems or to define scientific laws.
Z Test Statistic
A statistic that measures the difference between the observed value and the hypothesized population mean in units of the standard deviation.
Null Hypothesis
Refers to a statement or assumption that there is no difference or effect, used as a starting point for statistical testing to be challenged by the alternative hypothesis.
Level Of Significance
The threshold used in statistical tests to decide whether an observed effect is considered statistically significant.
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