Question: It gets pretty hot in your apartment. In browsing the Internet, you find a company selling small room air conditioners. You place the air conditioner

It gets pretty hot in your apartment. In browsing the Internet, you find a company selling small “room air conditioners.” You place the air conditioner on the floor, plug it in, and—the advertisement says—it will lower the room temperature up to 10°F. Should you order one? Explain.

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