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alue of the dependent variable

β^0 “Beta zero hat,” the estimated constant term in a regression equation

β0 “Beta zero,” the true constant term in a regression equation

β^1 “Beta one hat,” an estimated regression coefficient

β1 “Beta one,” a true regression coefficient

β^2 “Beta two hat,” an estimated regression coefficient

β2 “Beta two,” a true regression coefficient

β^ “Beta three hat,” an estimated regression coefficient

β “Beta three,” a true regression coefficient

β^! “Beta four hat,” an estimated regression coefficient

β! “Beta four,” a true regression coefficient

" 2  “" squared,” the coefficient of determination

" 2 #   “" bar squared,” the "$squared ad%usted for degrees of freedom&#   “& bar,” the mean of the dependent variable

'#   “' bar,” the mean of an independent variable '

ε “(psilon,” the error term

ρ  “"ho,” the correlation coefficient