تكلم مع الذكاء الاصطناعي
Introductory Econometrics 4th Edition by Jeffrey Wooldridge
النسخة 4الرقم المعياري الدولي: 978-0324660609Introductory Econometrics 4th Edition by Jeffrey Wooldridge
النسخة 4الرقم المعياري الدولي: 978-0324660609 تمرين 9
Use the data in ATTEND.RAW for thiexercise.
(i) In the model of Example 6.3, argue that stndfnl/ priGPA 2 + 2 4 priGPA + 6 atndrte. Use equation (6.19) to estimate the partial effect when priGPA = 2.59 and atndrte = 82. Interpret your estimate.
(ii) Show that the equation can be written as stndfnl = 0 + 1 atndrte + 2 priGPA + 3ACT + 4 (priGPA - 2.59) 2 + 5 ACT 2 + 6 priGPA(atndrte - 82) + u,
where 2 = 2 + 2 4 (2.59) + 6 (82). (Note that the intercept has changed, but this is unimportant.) Use this to obtain the standard error of
from part (i).
(iii) Suppose that, in place of priGPA(atndrte - 82), you put (priGPA - 2.59)-(atndrte - 82). Now how do you interpret the coefficients on atndrte and priGPA
(i) In the model of Example 6.3, argue that stndfnl/ priGPA 2 + 2 4 priGPA + 6 atndrte. Use equation (6.19) to estimate the partial effect when priGPA = 2.59 and atndrte = 82. Interpret your estimate.
(ii) Show that the equation can be written as stndfnl = 0 + 1 atndrte + 2 priGPA + 3ACT + 4 (priGPA - 2.59) 2 + 5 ACT 2 + 6 priGPA(atndrte - 82) + u,
where 2 = 2 + 2 4 (2.59) + 6 (82). (Note that the intercept has changed, but this is unimportant.) Use this to obtain the standard error of
from part (i).(iii) Suppose that, in place of priGPA(atndrte - 82), you put (priGPA - 2.59)-(atndrte - 82). Now how do you interpret the coefficients on atndrte and priGPA
التوضيح
موثّق
موثّق
(i)
Hold all variables except priGPA fix...
Introductory Econometrics 4th Edition by Jeffrey Wooldridge
لماذا لم يعجبك هذا التمرين؟
أخرى 8 أحرف كحد أدنى و 255 حرفاً كحد أقصى
حرف 255
