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Homework ch. 20-21

Homework ch. 20-21. 1. A toy manufacturer claims that at least 23% of the fourteen year old residents of a certain city own skateboards. A sample of 400 fourteen year olds shows that 70 own a skateboard. Test this claim at an ?=0.05. H 0 : p ? 0.23 claim H 1 : p < 0.23 Reject the null

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Homework ch. 20-21