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QUESTION
men between 20 amp; 29 in general population have a mean height of 69.3 inches, with standard deviation of 3.1 inches.
men between 20 & 29 in general population have a mean height of 69.3 inches, with standard deviation of 3.1 inches. a baseball analysts wonders whether the standard deviation of heights of major league baseball players is less than 3.1 inches. how do I find X^2 = & P-value
