a.) Interpret the coefficient on shall in regression (2). Is this estimate econo

Question

a.) Interpret the coefficient on shall in regression (2). Is this estimate economically significant?

b.) Does adding the control variables in regression (2) change the estimated effect of a shall-carry law in regresssion (1)? Is the coefficient statistically significant?

1.)

2.)

.reg Invio shall, r Number of obs F (1, 1171) Prob F R-squared Root MSE 1,173 86.86 , 0000 0.0866 61735 Linear regression Robust lnvio Coef Std. Err. [9 5% Conf. Interval] -9.32 0.000 6.134919.0193039 317.81 0.000 shall 44296460475283 -.5362148-3497144 6.172793 -cons 6.097045 . reg lnvio shall incarc_rate density avginc pop pb1064 pw1064 pm1029, r

Explanation / Answer

a) Decision rule : if p value < 0.05, then slope or regression coefficient is significant

Yes, Shall is significant

since p value = 0.000< 0.05

it indicates if Shall increases 'one' unit then invio decreases for -0.368 units

b) No change in both the 'Shall' effects are statistically significant

Yes this coeffiient is statistically significant

since p value = 0.000 < 0.05

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