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A sociologist plans to conduct a survey to estimate the percentage of adults who believe in astrology. How many people must be surveyed if he

A sociologist plans to conduct a survey to estimate the percentage of adults who believe in astrology. How many people must be surveyed if he wants a confidence level of 99% and want to limit the error to four percentage points. In a previous study it showed that 26% of the respondents believe in astrology.

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