Final answer:
The man from the United States who is 5 feet 9.5 inches tall has a standardized score of approximately 0.034 for his height.
Step-by-step explanation:
To find the standardized score (Z) for a man's height, we need to use the formula:
Z = (x - mean) / standard deviation
Given that the average height for men in the United States is 5 feet 9.3 inches with a standard deviation of 2.94 inches, and the man's height is 5 feet 9.5 inches, we can calculate:
Z = (5.79 - 5.78) / 2.94 ≈ 0.034
Therefore, the man's standardized score (Z) for his height is approximately 0.034.