In 1974, the mean weight for men in the United States aged 18-74 was 172 pounds, with a standard deviation of 31.1 pounds. What weight is the lower bound of the 70th percentile? In other words, what weight would a man have to be for 70% of all men in the sample to weigh less than him? Round your answer to one decimal place, e.g. 165.9.

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In 1974, the mean weight for men in the United States aged 18-74 was 172 pounds, with a standard deviation of 31.1 pounds. What weight is the lower bound of the 70th percentile? In other words, what weight would a man have to be for 70% of all men in the sample to weigh less than him? Round your answer to one decimal place, e.g. 165.9.
 
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