The Mean Height Of A Sample Of 15 Year Old Boys Is 175 Centimeters With A Standa

The mean height of a sample of 15-year-old boys is 175 centimeters, with a standard deviation of 10. For a sample of 15-year-old girls, the mean is 165 centimeters with a standard deviation of 8.

If 8 boys and 8 girls were sampled, the standard deviation of the difference is __ ? (Round your answer to the nearest hundredth.)

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