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A marketing manager for a cell phone company claims that the percentage of children aged8-12 who have cell phones differs from52%. In a survey of832
A marketing manager for a cell phone company claims that the percentage of children aged8-12 who have cell phones differs from52%. In a survey of832 children aged8-12 by a national consumers group,449of them had cell phones. Can you conclude that the manager's claim is true? Use the = 0.10 level of significance and theP-valuemethod with the table.
- State the appropriate null and alternate hypotheses.
- Is this hypothesis test right-tailed, left-tailed, or two-tailed?
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