hw3

# The Basic Practice of Statistics w/CD-ROM

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homework 3 4.25) a) Compared to men, women have made more progress than men in a shorter  time frame.  Men have a steady decreasing record time but at a flatter angle  than women. b) m -.9877732 w -.9704645 the correlations say that mens time are more linear than womens because  men have a correlation closer to -1. The outliers for women are what probably  make the correlation number less than mens.  c) yes. This data supports these claims. Women have greatly imporved in the small amount of time they have been running. It can be seen women are very close to the record time men have 4.26) a) .74 is the correlation for men 6 inches shorter .57 is the correlation for men at regular height. The correlation makes the linear relationship between men and women stronger when men are 6 inches. It does not however tell us weather women  tend to date men taller than themselves

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## This document was uploaded on 04/08/2008.

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hw3 - homework 3 4.25 a world record running times 2400...

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