College Political Science Quiz
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RESEARCH METHODS
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A political scientist analyzed survey response rates across different demographic groups. Group X (n=150) had a mean response rate of 0.72 with a standard deviation of 0.18. Group Y (n=200) had a mean response rate of 0.68 with a standard deviation of 0.22. When the groups were combined, the overall mean response rate was 0.696.
If a researcher wants to create standardized response rate categories where 'High' represents the top 16% of all individual responses (assuming normal distribution), what standardized score threshold should be used, and how should it be interpreted?
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