The number of employees, in thousands, of Keller Overhead Door Inc. for the years 2009 to 2014 are:

a. Plot the data.
b. Determine the least squares trend equation.
c. Use the trend equation to calculate the points for 2011 and 2014. Plot them on the graph and draw the regression line.
d. Estimate the number of employees in 2017.
e. By how much has the number of employees increased (or decreased) per year, on the average, during theperiod?

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Moer Employesarmplryes 2009 2010 2011 Employees 45.6 42.2 41.1 Year 2012 2013 2014 Employees 39.3 34.0 30.0