HDTV Penetration In a survey of 1500 households, it is found that 47% of them have a

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HDTV Penetration In a survey of 1500 households, it is found that 47% of them have a high-definition television (based on data from the Consumer Electronics Association). Use a 0.01 significance level to test the claim that fewer than half of all households have a highdefinition television. Is the result from a few years ago likely to be valid today?

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