Question
the amount of a certain trace element in blood is known to vary with a standard deviation of 14.1 ppm .for male blood donors and
the amount of a certain trace element in blood is known to vary with a standard deviation of 14.1 ppm .for male blood donors and 9.5 for female blood donors. random samples of 75 male and 50 female donors yield concentration means of 28 and 33ppm respectively. what is the likelihood that the population means of concentration of the element are the same for men and women?
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Essentials Of College Algebra
Authors: Margaret L Lial, John E Hornsby, David I Schneider, Teresa McGinnis
10th Edition
0321970632, 9780321970633
