When is it appropriate to use the t-test for independent samples, t-test for dependent samples, and the test for differences between two proportions?
independent samples and one for dependent or matched samples.
The independent-samples test is designed to measure mean differences between two samples that are independent of each other or two subsets within the same sample. The key here is that we have two samples that are assumed to be independent. There are two different statistical tests for the difference between two independent samples, the appropriate one to use depends upon what assumption we can make about the population variances. In contrast, the matched-groups or dependent-samples test is designed to measure the difference between means obtained for the same sample at two points in time or between two samples that are matched on certain characteristics so as to be as much alike as possible.
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Under CompStat, commanders must proactively respond to crime problems and explain all but which one of the following:
a. What tactics they have employed to address crime patterns b. What resources they have and need c. How many officers they employed in the process d. With whom they have collaborated
A police department might want to include the community's input when developing a mission statement because it
a. improves police–community relations. b. decreases the possibility of the agency accomplishing its mission. c. maintains officer support. d. decreases community complaints.
According to Weber (1964), opposed to classical liberal philosophy is the view that the state has the sole right to use ______ power.
a. legitimate b. coercive c. reward d. expert
___________ and __________ are frequently used interchangeably because both terms are socially constructed concepts that define the group a person belongs to
Fill in the blank(s) with correct word