
Introduction to Econometrics 3rd Edition by James Stock, James Stock
Edition 3ISBN: 978-9352863501
Introduction to Econometrics 3rd Edition by James Stock, James Stock
Edition 3ISBN: 978-9352863501 Exercise 12
Show that the pooled standard error [ SE pooled (
m -
v )] given following Equation (3.23) equals the usual standard error for the difference in means in Equation (3.19) when the two group sizes are the same (n m = n w ).
![Show that the pooled standard error [ SE pooled ( m - v )] given following Equation (3.23) equals the usual standard error for the difference in means in Equation (3.19) when the two group sizes are the same (n m = n w ).](https://d2lvgg3v3hfg70.cloudfront.net/SM2686/11eb9b5b_3d5c_72ea_bf3e_9391f9c86a7d_SM2686_00.jpg)
![Show that the pooled standard error [ SE pooled ( m - v )] given following Equation (3.23) equals the usual standard error for the difference in means in Equation (3.19) when the two group sizes are the same (n m = n w ).](https://d2lvgg3v3hfg70.cloudfront.net/SM2686/11eb9b5b_3d5c_4bd7_bf3e_fb922efd0d61_SM2686_11.jpg)
![Show that the pooled standard error [ SE pooled ( m - v )] given following Equation (3.23) equals the usual standard error for the difference in means in Equation (3.19) when the two group sizes are the same (n m = n w ).](https://d2lvgg3v3hfg70.cloudfront.net/SM2686/11eb9b5b_3d5c_4bd8_bf3e_8ffb5fab267c_SM2686_11.jpg)
![Show that the pooled standard error [ SE pooled ( m - v )] given following Equation (3.23) equals the usual standard error for the difference in means in Equation (3.19) when the two group sizes are the same (n m = n w ).](https://d2lvgg3v3hfg70.cloudfront.net/SM2686/11eb9b5b_3d5c_72e9_bf3e_f91c16e9a041_SM2686_00.jpg)
![Show that the pooled standard error [ SE pooled ( m - v )] given following Equation (3.23) equals the usual standard error for the difference in means in Equation (3.19) when the two group sizes are the same (n m = n w ).](https://d2lvgg3v3hfg70.cloudfront.net/SM2686/11eb9b5b_3d5c_72ea_bf3e_9391f9c86a7d_SM2686_00.jpg)
Explanation
We need to show that the pooled standard...
Introduction to Econometrics 3rd Edition by James Stock, James Stock
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