Examlex
As most prices are set when the product leaves the factory,good or bad economic news does not affect a firm's marketing activities
Cohen
A surname often associated with statistical measures of effect size, such as Cohen's d for measuring the difference between two means.
Effect Size
A quantitative measure of the magnitude of the experimental effect, indicating the practical significance of the difference between groups.
Significance Level
A statistic representing the probability of committing a Type I error, typically denoted by alpha (α), indicating how likely it is to find a result as extreme as, or more so, if the null hypothesis is true.
P < .05
A statistical notation indicating that the probability of the observed results occurring by chance is less than 5%.
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