The Census Bureau projections of male life expectancy at age 65 in the United States are summarized in the following table. (Here, x = 0 corresponds to the beginning of 2000.) Find the equation of the least-squares line for these data. Use the equation found to estimate the life expectancy at 65 of a male in 2030.
A) y = 0.3x + 10.31; 19 years
B) y = 0.09x + 16; 18 years
C) y = 0.22x + 9.95; 82 years
D) y = 0.3x + 10.31; 84 years

Question

The Census Bureau projections of male life expectancy at age 65 in the United States are summarized in the following table.  (Here, x = 0 corresponds to the beginning of 2000.) Find the equation of the least-squares line for these data. Use the equation found to estimate the life expectancy at 65 of a male in 2030.
A) y = 0.3x + 10.31; 19 years 
B) y = 0.09x + 16; 18 years 
C) y = 0.22x + 9.95; 82 years 
D) y = 0.3x + 10.31; 84 years

Quizplus · Accepted Answer

The Answer of The Census Bureau projections of male life expectancy at age 65 in the United States are summarized in the following table.  (Here, x = 0 corresponds to the beginning of 2000.) Find the equation of the least-squares line for these data. Use the equation found to estimate the life expectancy at 65 of a male in 2030.
A) y = 0.3x + 10.31; 19 years 
B) y = 0.09x + 16; 18 years 
C) y = 0.22x + 9.95; 82 years 
D) y = 0.3x + 10.31; 84 years

The Census Bureau Projections of Male Life Expectancy at Age