Cluster sampling has advantages and is less expensive than simple random sampling, but is slightly less accurate
Indicate whether the statement is true or false
TRUE
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What percentage of voters will cast a ballot in an average election?
a. 75% b. about 50% c. about 25% d. nearly 90%
The constitutional sharing of power by a national government and regional units of government characterizes and defines federalism
Indicate whether the statement is true or false
Statistical analysis procedures for a research study should be
A) determined by a statistician. B) selected before data collection begins. C) computed by hand for greater accuracy. D) selected after data collection is complete to ensure a match between the procedure and the type of data.
Carefully controlling measurement conditions and developing reliable measurement instruments aids in minimizing
A) extraneous variance. B) error variance. C) systematic effects. D) experimental variance.