Testing a claim about a proportion

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Testing a Claim About a Proportion

In the first two months of a recent year, 95 occupants were killed by air bags, and 63 of them were "improperly belted" (based on data from the National Highway Traffic Safety Administration). Use a 0.05 significance level to test the claim that among occupants killed by air bags, the majority were improperly belted.

Reference no: EM131555116

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