The mean serum cholesterol of 25 men ages 65-74 is 231, Ask an Expert

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The mean serum cholesterol of 25 men ages 65-74 is 231, with the standard deviation of 50. For 25 women of same age, the mean serum cholesterol level is 255 with standard deviation of 49. Are the average serum cholesterol levels statistically different between men and women?

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