The table below shows the life expectancy for an individual born in the United States in...

The table below shows the life expectancy for an individual born in the United States in certain years. Year of Birth Life Expectancy 1930 59.7 1940 62.9 1950 70.2 1965 69.7 1973 71.4 1982 74.5 1987 75 1992 75.7 2010 78.7 For the least squares line Y(hat) = bX + a a = (#.##) b = (#.##) r = (#.####); p (< or > or =) alpha The estimated life expectancy for an individual born in 1950 and for one born in 1982 is and , respectively. (#.##)

Solutions

Expert Solution

Regression equation is given by
Life expectancy =−377.2431+ 0.2275 YearofBirth

prediction for person born in 1950 :
Life expectancy =−377.2431+ 0.2275 *1950
= 66.3819 years

prediction for person born in 1982 :
Life expectancy =−377.2431+ 0.2275 *1982
= 73.6619 years

PL??

orchestra answered 1 year ago

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