Examlex
Direct mail has a higher cost per thousand than personal selling.
Null Hypothesis
The default hypothesis that there is no significant difference or relationship between specified populations, any observed effect is due to sampling or experimental error.
GPAs
Grade point averages, numerical calculations that represent the average performance of a student across all completed courses.
F-ratio
A statistical measure that is used to compare the variance among group means in a sample.
Null Hypothesis
The null hypothesis is a default hypothesis that there is no significant effect or difference present, to be tested against the alternative hypothesis.
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