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If the sampled population distribution is skewed then, in most cases, the sampling distribution of the mean can be approximated by the normal distribution if the sample size, n, is at least 30.
Null Hypothesis
A statement or hypothesis that suggests there is no significant difference or relationship between specified populations, any observed difference being due to sampling or experimental error.
Standard Deviation
A measure of how spread out numbers are in a dataset, indicating the variation or dispersion around the mean.
Programming Ability
The skill or competence in creating and understanding computer programs and software using different programming languages.
Null Hypothesis
The default assumption in statistical analysis that there is no significant difference or effect.
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