A Researcher Conducted a Study of the Access Speed of 45

question 37

Multiple Choice

A researcher conducted a study of the access speed of 45 hard drives and concluded that his maximum error of estimate was 20. If he were to conduct a second study to reduce the maximum error of estimate to 5, about how many hard drives should he include in his new sample?

• A) 45
• B) 90
• C) 180
• D) 720

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Definitions:

Price Floor

A government or regulatory imposed minimum price set above the equilibrium price, preventing market prices from falling below a certain level.

Price Ceiling

A legally established maximum price that can be charged for a good or service, usually set by the government.

Shortage

An instance where there is more demand for a product or service than what is available in the market.

Offshore Oil Wells

Drilling sites located in bodies of water, often at a considerable distance from the shore, that are used to extract oil from beneath the ocean floor.