Examlex
A random sample of 100 observations from a normal population whose standard deviation is 50 produced a mean of 75.Does this statistic provide sufficient evidence at the 5% level of significance to infer that the population mean is not 80?
Biased Sample
A sample that does not accurately represent the population from which it was drawn, usually due to prejudiced selection methods.
Representative Sample
A segment of a population that correctly embodies the traits of the entire population group.
Biased Population
A group in which certain characteristics are over- or underrepresented, leading to skewed or unrepresentative sample outcomes.
Statistically Significant Population
A population size or characteristic in which differences or effects observed are unlikely to be due to chance, typically determined through statistical tests.
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