Question

21. The average 20-29 year-old man is 69.9 inches tall, with a standard deviation of 3.0 inches, while the average 20-29 year-old woman is 64.6 inches tall, with a standard deviation of 2.8 inches. Who is relatively taller, a 75-inch man or a 70-inch woman?: O a. The man because he is 5 inches taller than the woman. Ob. They are the same height relatively speaking, Oc. The woman because she has a higher Z-score than the man. Od. Unable to determine. 22. Which correlation is most likely to correspond to the following scatterplot?: * 18 16 Y 14 12 10 4 6 8 10 12 Oa.-0.71

Answer 1

2 Z-score of 75-inch Wam - 1.7 = 2 = 75 -6909 3 2- scare of 70-inch woman = Z2 = 70-6466_3 1093 2.8 Ans: The woman because she has a higher Z-sure than the man 22) f. 0.85 @ [ Sinee, the relatimthip depicted by in depicted by Scalles pleit is upward sloping Showing strong pasiliane linear relationship) y = So, for 23) = 1:2 + 3040 5. for x = y = 1.2 = 1.2 + 3.4x 5 18.2. Ano'. b. 18.2.