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The following table gives the life expectancy at birth of
Chapter , Problem 1EA(choose chapter or problem)
Problem 1EA
The following table gives the life expectancy at birth of females born in the United States in various years from 1970 to 2005. Source: National Center for Health Statistics.
Year of Births |
Life Expectancy (years) |
1970 |
74.7 |
1975 |
76.6 |
1980 |
77.4 |
1985 |
78.2 |
1990 |
78.8 |
1995 |
78.9 |
2000 |
79.3 |
2005 |
79.9 |
Find an equation for the least squares line for these data, using year of birth as the independent variable.
Questions & Answers
QUESTION:
Problem 1EA
The following table gives the life expectancy at birth of females born in the United States in various years from 1970 to 2005. Source: National Center for Health Statistics.
Year of Births |
Life Expectancy (years) |
1970 |
74.7 |
1975 |
76.6 |
1980 |
77.4 |
1985 |
78.2 |
1990 |
78.8 |
1995 |
78.9 |
2000 |
79.3 |
2005 |
79.9 |
Find an equation for the least squares line for these data, using year of birth as the independent variable.
ANSWER:
Solution
Step 1 of 3:
In this problem, we need to find an equation for the least squares line for the given data.