a.
Check whether the study appears to use random sampling.
a.
Answer to Problem 1E
Yes, the study appears to use random sampling.
Explanation of Solution
Random Sampling:
Random sampling is a sampling technique where each unit of the population has an equal chance of being selected.
In the given situation, a sample of voters can be asked to which party they voted. Therefore, the study appears to use random sampling.
b.
Check whether the study appears to use random assignment.
b.
Answer to Problem 1E
No, the study does not appear to use random assignment.
Explanation of Solution
Random assignment:
Random assignment is a technique where each group has an equal chance of getting each of the population units.
For the given situation in Part (a), there is no situation where voters can be assigned into groups. Therefore, the study does not appear to use random assignment.
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