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A magazine article claims that more than 5% of U.S. passenger vehicles on the road are electric. You are skeptical, and decide to investigate. From

A magazine article claims that more than 5% of U.S. passenger vehicles on the road are electric. You are skeptical, and decide to investigate. From a random sample of 850 cars you find 55 that are electric. Test the magazine's claim at a 4% significance level.

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