A reseacher wishes to estimate with 95% confidence, the percentage of adults who support abolsihing the penny. His estimate must...
jladinA reseacher wishes to estimate with 95% confidence, the percentage of adults who support abolsihing the penny. His estimate must be accurate within 5% of the true porportion.
a) find the minimu sample size needed, using prior study that found theat 24% of the residents said they support the penny
b) no preliminary estimate is availiable , find the minuim sample size needed.
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