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FIGURE 13-1
-Curve B in Figure 13-1 represents
Random Sampling Errors
Variability in sample statistics from sample to sample due to the method of choosing a random subset of the population.
Significance Tests
Statistical tests used to determine if the results of a study are likely to be due to chance or if they are significant.
Significance Level
The probability of rejecting the null hypothesis when it is actually true, often denoted as alpha (α) and typically set at 0.05 or 5%.
Null Hypotheses
A statement in statistical inference that proposes no significant difference or no effect, serving as the default assumption to be tested.
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