When subgroups of a population are represented in a sample in proportion to their numbers in the population, the sample is known as a
A) random sample.
B) stratified random sample.
C) systematic area sample.
D) proportional sample.
B
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authoritative neglectful authoritarian permissive
The colored part of the eye is called the _______________
a. pupil b. iris c. cornea d. retina
The entire group of interest to researchers and the group to which they want to generalize their findings is called the _____
a) sample. b) representative sample. c) study group. d) population.
The higher the power, _________
a. the larger is Preal b. the larger the N of the experiment c. the more the experiment allows H0 to be rejected if it is false d. the more likely H0 is to be rejected whether H0 is true or false e. the larger is Preal and the larger the N of the experiment