American womens heights are approximately normally distributed with mean 63.8 inches and standard deviation 4.2 inches. American

Question:

American women’s heights are approximately normally distributed with mean 63.8 inches and standard deviation 4.2 inches. American men’s heights are approximately normally distributed with mean 69.4 inches and standard deviation 4.7 inches (Source: National Health Statistics Report).
a. What height is at the 30th percentile for women’s heights?
b. What height is at the 30th percentile for men’s heights?
c. If there were the same number of women as men in the United States, what would be the mean height of all American adults?
d. In reality, there are more women than men in the United States. Is your result in part (c) an underestimate or an overestimate of the mean height of all American adults?
Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question
Question Posted: