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A sample of 6 child booster seats for cars showed that the booster seat has a mean of 804 hic (standard head injury condition units) with a standard deviation of 273 hic. Use a 1% significant level to test the claim that the child booster seats are at least 1000 hic to meet the safety standard.
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10. Assume that a simple random sample has been selected from a normally distributed population and test the given claim.
Identify the null and alternative hypotheses, te...
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