A random sample of nonindustrialized countries was selected, and the life expectancy in years is listed for both men and women. Men 71.8 68.0 57.2 68.8 69.1 72.0 Women 65.2 67.3 45.0 66.3 68.1 60.2 The correlation coefficient for the data is r=0.829 and =α0.05. Should regression analysis be done? The correlation coefficient for the data is  =r0.829  and  =α0.05 . Should regression analysis be done?   Find the equation of the regression line. Round the coefficients to at least three decimal places.

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Life Expectancies A random sample of nonindustrialized countries was selected, and the life expectancy in years is listed for both men and women.

Men
71.8
68.0
57.2
68.8
69.1
72.0
Women
65.2
67.3
45.0
66.3
68.1
60.2

The correlation coefficient for the data is r=0.829 and =α0.05. Should regression analysis be done?

The correlation coefficient for the data is 

=r0.829

 and 

=α0.05

. Should regression analysis be done?

  Find the equation of the regression line. Round the coefficients to at least three decimal places.  
 
y=′a+bx
 
 
=a
 
 
=b
 
     
  Find women's life expectancy in a country where men's life expectancy = 57 years. Round your answer to at least three decimal places.  
 
Women's life expectancy in years.
 
 
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