Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. 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.)