It due in a couple hours Im stuck. Can you help me please

a) why the hypothesis test is required in the below regression analysis (either simple or multiple) b) the underlying mechanism/intuition of a two-tailed hypothesis test in the context of regression analysis. Aid your illustration with appropriate diagrams. SUMMARY OUTPUT growth 1990 +tem 1990 + pre 1990 Regression Stotistics Multiple R 0.349834261 R Square 0.122384011 Adjusted R. Square 0.105342923 Standard Error 2.16508217 Observations 106 AROVA of 55 MS Significance F Regression 2 67.32961719 33.66480859 7.181702039 Q.001202772 Residual 103 482.8208225 4.687580801 Total 105 550.1504397 Coefficients Standard Error Stot P-value Lower 95% Upper 95% Lower 95.0% Upper 95.ON Intercept 3.437917764 0.659126959 5.215865802 9.5002E-07 2.130694899 4.745140529 2.130694899 4.745140629 tem1990_2000 0.121483991 0.032151756 3.778455913 0.000264542 -0.185249415 0.057718567 0.185249415 0.057718567 pre1990 2000 0.032622476 0.03261135 1 000341165 0.319489749 -0.032054445 0.097299397 -0.032054445 0.097299397