What is the probability that the difference between sample means
For a population of 17-year-old boys and girls, the means and standard deviations, respectively, of their subscapular skinfold thickness values are as follows: boys, 9.7 and 6.0; girls, 15.6 and 9.5. Simple random samples of 40 boys and 35 girls are selected from the populations. What is the probability that the difference between sample means x girls − xboys
will be greater than 10?
Sample Solution
