This data is obtained from witchtrials.dta (Stata). a.) Compare the results to w

Question

This data is obtained from witchtrials.dta (Stata).

a.) Compare the results to what you obtained with the "robust" option and without the "robust" option. What is different?

13 reg trialindex tempindex df MS 170 11.82 - 0.0007 -0.0657 -0.0602 94199 Number of obs F, 168) Source 10.486852 149.074362 1 10.486852 Prob>F 168 88734739 R-squared Model Residual 149 Adj R-squaredo Total 159.561214 169 944149192 Root MSE trialindex Coef Std. Err P> | t | [ 95% Conf . Interval ] tempindex.2720498 .0791358 3.44 0.0014282785 1158212 1179448 cons- 0256929 0727579 -0.35 0.724 -.1693305 5 reg trialindex tempindex, r Linear regression Number of obs F(1, 168) Prob >F R-squared Root MSE 170 10.69 0.0013 0.0657 94199 Robust Std. Err trialindex Coef t P> (95% conf. Interval] tempindex! .2720498 .0831941-3.27 0.001 -.4362903-·1078093 1155134 cons.0256929 .0715263 0.36 0.720 .1668991

Explanation / Answer

Using robust option ,standard error of beta estimates decrease, see in robust se of b1^ =0.715263

Whereas without robust option

Se(b1^) is 0.727579 ,which is more than that in robust option similarly in b0^

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---