Examlex
A microbe that grows only slightly below the surface of a tube of thioglycolate medium is probably a(n)
One-sample Z-test
A statistical test used to determine whether there is a significant difference between the mean of a sample and a known or hypothesized population mean.
Mean of a Sample
The average value obtained by dividing the sum of all observations in a sample by the number of observations.
Mean of a Population
The average value derived from adding all the values in a population and then dividing by the number of values.
Null Hypothesis
A default hypothesis that there is no effect or no difference, used as a starting point for statistical significance testing.
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