Question: Data Project Answer the following questions. The table below shows the life expectancy for an individual born in the United States in certain years. Year

Data Project Answer the following questions. The table below shows the life expectancy for an individual born in the United States in certain years. Year of Birth (x) 1930 1940 1950 1965 1973 1982 1987 1992 2010 The correlation coefficient between Year of Birth and Life expectancy is r=0.9612 and the least squares regression equation is (life expectancy) = -377.243 + 0.22748x Life Expectancy (y) 59.7 62.9 70.2 69.7 71.4 74.5 75 75.7 78.7 i) Which variable is the independent variable, and which is the dependent variable. ii) Using the least squares line find the estimated life expectancy for an individual born in 1982. Does the least squares line give an accurate estimate for that year? Explain why or why not. iii) Using the least squares line, find the estimated life expectancy for an individual born in 1850. Does the least squares line give an accurate estimate for that year? Explain why or why not. iv) What is the slope of the least-squares (best-fit) line? Interpret the slope

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