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      Question

      The distribution of heights of American women aged 18 to

      24 is approximately normally distributed with a mean of 65.5 inches and standard deviation of 2.5 inches. Calculate the z-score for a woman six feet tall
      A 2.60 Correct Answer Incorrect Answer
      B 4.11 Correct Answer Incorrect Answer
      C 1.04 Correct Answer Incorrect Answer
      D 1.33 Correct Answer Incorrect Answer
      E 1.35 Correct Answer Incorrect Answer

      Solution

      Β  Z = X-Mean / SD Β  X= 6 feet = 6*12 inches = 72 inches Z = (72 – 65.5) / 2.5 = 2.6

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