Studying to reduce the maximum error of estimate

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How do you solve this problem: a researcher conducted a study of the access speed of 50 hard drives and concluded that his maximum error of estimate was 24. If he were to conduct a second study to reduce the maximum error of estimate to 6, about how many hard drives should he include in his new sample.

Reference no: EM1397144

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Studying to reduce the maximum error of estimate : How do you solve this problem: a researcher conducted a study of the access speed of 50 hard drives and concluded that his maximum error of estimate was 24.
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