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In a research report Richard H Weindruch of the UCLA Medical School claims that mice...

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In a research report Richard H Weindruch of the UCLA Medical School claims that mice with an average life span of 30 months will live to be about 45 months old when 40 of the calories in their diet are replaced by vitamins and protein Is there any reason to believe this claim if 24 mice that are placed on this diet have an average life of 38 months with a standard deviation of 5 8 months Find the test statistic Round your answer to 2 decimal places

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