Posted by CM on Monday, September 28, 2009 at 12:08am.
The height of adult women in the U.S. is normally distributed, with a mean height of 64 inches and a standard deviation of 3 inches. With this in mind, answer the following:
a) The shortest 10% of women are shorter than what height?
b) The middle 75% of all women are between what two heights?
c) The tallest 5% of women are taller than what height?
I'm so confused. Please help.

stats  drwls, Monday, September 28, 2009 at 6:36am
Try using this website for making calculations that require the normal distribution function.
http://psych.colorado.edu/~mcclella/java/normal/accurateNormal.html
For part a), I get
60.15 inches.
For art (c), I get 68.94 inches
I had to guess the limits and see what the fractions fell within those limits, using the computation tool provided. Some iteration was required.
Answer This Question
Related Questions
 Stats  The height of adult women in the U.S. is normally distributed, with a ...
 Statistics  Assume the heights of women are normally distributed with a mean ...
 statistics  The heights of American women aged 18 to 24 are normally ...
 statistics  The heights of American women aged 18 to 24 are normally ...
 Statistics  The heights of young women are approximately normally distributed ...
 MBA  1 The height of adult women in the United States is normally distributed ...
 Math Statistics  The hieght of women are approximately normally distributed ...
 Statistics  Assuming that the heights of college women are normally distributed...
 statistics  The height of an adult male is known to be normally distributed ...
 Statistics  Assuming that the heights of college women are normally distributed...
More Related Questions