A researches experiment with 50 subjects a 95 prediction


Queetion: A researches experiment with 50 subjects, a 95% prediction interval would have a width of 4 units,. If the researcher wishes to run a more precise experiment that will result in a 95% prediction interval with a width of 2 units then the researcher will require how many subjects?

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Mathematics: A researches experiment with 50 subjects a 95 prediction
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