An independent researcher is interested in studying the factors that affect the educational attainment of an individual (Y). For her study, she chooses educational attainment of the individual's mother (X1) and the annual income of the individual's family (X2) as regressors. The researcher randomly selects a sample of 180 individuals and estimates the following regression function: Y = 8.00 + 1.74X1 + 2.12X2 (0.56) (1.23). She wants to test whether or not a change in X1 significantly affects Y, keeping the annual income of the individual's family constant.
The f-statistic for testing the hypothesis H0: β1 = 0 vs. H1: β1 ≠0 will be
(Round your answer to two decimal places.)