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11. Dog Ownership A survey found that in a random sample of 75 families, 26 owned dogs. A survey done 15 years ago found that

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11. Dog Ownership A survey found that in a random sample of 75 families, 26 owned dogs. A survey done 15 years ago found that in a random sample of 60 fami lies, 26 owned dogs. At ex = 0.05, has the proportion of dog owners changed over the IS-year period? Use the P- valme method

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