user11883661

11.06.2021 • 

Mathematics

The fixed effects transformation Consider the following simple unobserved effects regression model for each i:
yit = β1xit + ai + uit
where
yit = value of the dependent variable for individual i at time t
xit = value of the independent variable for individual i at time t
ai = unobserved, time-constant effect
uit = idiosyncratic error
ai___over time. Therefore, the average value ofa; over time (-) is equal to___. So ai = ai - ai=. The IS constant fol presents the time-demeaned data on a variable, performing the fixed effects transformation on the original model yields which of the following varies?
aiover time. Therefore, the average value of ai over time (ai) is equal to. So bar ai = ai - bar ai.
Therefore, if___represents the time-demeaned data on a variable, performing the fixed effectinformation on the original model yields which of the following?
a. bar yit = β1 barxit + ai + uit
b. yit - yi = β1(xit - xi) + (uit - ui)
c. yit - yi = β1(xit - xi) - (uit - ui)
d. yit = β1xit + uit
Suppose, in the original unobserved effects model, xit = sat is the SAT score, (with the highest score used if there were multiple attempts)
β1 can be estimated by using the within transformation on the unobserved effects model and then using OLS.
A. True
B. False

Ответ:

shakaylaousley1997

25.04.2021

Mathematics

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100= 10+ 16t

Step-by-step explanation:

If beginning at 10 percent you initially are only in need for 90% charge. Earning 16% every thirty minutes you can initially do x4 for two hours on the charger and know you aren't at 100 yet. (16x4)+10= 64+10= 74. 100-74= 26. You need one more hour (total of 6 half hours) on the charger.

Another way of doing it could be 16÷90 and getting 5.blahblahblah and rounding up.

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