Nkechi took a random sample of 10 countries to study fertility rate (babies per woman) and life
expectancy (in years). She noticed a strong negative linear relationship between those variables
in the sample data. Here is computer output from a least-squares regression analysis for using
fertility rate to predict life expectancy:
Predictor
Constant
Coef SE Coef
89.70
1.63
Fertility
-5.97
0.59
S = 1.91 R-sq = 92.8%
T
Use this model to predict the life expectancy of a country whose fertility rate is 2 babies per
years
P
54.87 0.00
-10.18 0.00
woman.
You may round your answer to the nearest whole number of years.
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