Concept explainers
Determine whether the sampling method is random, systematic, or stratified. Tell whether the method will produce a good sample.
A pollster phones every fourth registered Republican in the state to find out which candidate for Senator the person prefers.
Determine whether the sampling method is random , systematic or stratified . Tell whether the method will produce a good sample.
Answer to Problem 14P
Systematic
Explanation of Solution
Given:
A pollster phones every fourth registered Republican in the state to find out which candidate for Senator the person prefers.
Calculation:
Since the pollster phones every fourth registered Republican in the state , the sampling method is systematic.
The best method would be random sampling . But since here also he is chooses every fourth Republican in the state , it will produce good sample.
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