You work for a horse farrier. you take a random sample of 75 quarter horses and determine that their mean height is 15.2 hands. which statement is true? a) you conclude that the height of all quarter horses is exactly 15.2 hands . b) you conclude that the mean height of all quarter horses is close to 15.2 hands. c) you conclude that the height of half of the quarter horses is less than 15.2 hands. d) you conclude that the height of half of the quarter horses is more than 15.2 hands.