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In a survey of men in the United States the mean height was inches with a standard deviation of inches Assume the height data is normally distributed

In a survey of men in the United States (ages 20 to 29), the mean height was 69.9 inches with a standard deviation of 3.0 inches. Assume the height data is normally distributed. Zak's height has a z-score of -1.7. Which one of the following statements is true?

1.     Zak is shorter than 65 inches.

2.     Zak's height is in the lower 2.5% of men's heights (ages 20 to 29).

3.     Zak is taller than 72.9 inches.

 

Apr 25 2020 View more View Less

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