A researcher is interested in determining whether consuming prescribed vitamins can affect an individual's level of conc
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A researcher is interested in determining whether consuming prescribed vitamins can affect an individual's level of conc
A researcher is interested in determining whether consuming prescribed vitamins can affect an individual's level of concentration. On observing 250 randomly chosen individuals in a clinical trial, 100 still exhibited extreme levels of concentration 3 hours after consuming the prescribed vitamins. If the researcher is interested in conducting the same experiment in another trial, how many participants should he observe if he desired to correctly estimate the true proportion within 3%? Assume a confidence level of 95%. O 1000 O 437 O 726 O 1025
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