Suppose you are to estimate a simple regression for the following population model: Y=l30 + [31X + L1 From a population of over thousands of observations, a small number of samples were randomly selected. The following is the randomly selected sample. The estimated OLS estimation is: Yhat = 1.58 + 0.05X Compute the disturbance term when X: 30. Fill in the correct answer in the blank box and if a decimal point appears, round it to Two decimal places