[solved]-Men Between 20 Amp 29 In General Population Have A Mean Height Of 69 3 Inches Wi

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

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