Examlex
Explain how the community-policing concept has changed the role of police officers.
Population Variances
A measure of spread within a distribution or how much the members of the population differ from the population mean.
Pooled-variances T-test
A statistical method used to compare the means of two groups, assuming that the two populations have equal variances.
Rejection Region
In hypothesis testing, it is the range of values for which the null hypothesis is rejected in favor of the alternative hypothesis.
Additives
Substances added to products to improve or preserve them.
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