An independent researcher is interested in studying the factors that affects the educational attainment of an individual (Y) . For her study she chooses educational attainment of the individual's mother (X, ) 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+ 2.12X1 + 0.76X2- (0.56) (1.23) She wants to test whether or not a change in (X, ) significantly affects (Y) keeping the annual income of the individual's family constant. The t-statistic for testing the hypothesis Ho: By =0 vs. H1 : B, #0 will be (Round your answer to two decimal places.) Spreadsheet Print Clear All Check