Econometrics Case

Work individually. Group work on homework assignments is not permitted.

Show all of your work. Full credit will only be given to answers that are supported by step-by-step

calculations.

For questions using Stata, please type your answers into a word processing document (using MS

Word or something similar). Insert ONLY the relevant part of your Stata log file into your

document, and clearly explain how you use your Stata output answers the question. Copying and

pasting your log file into the word document without an explanation will NOT be considered a

complete answer and will not receive full credit.

Part I: Multiple Choice Questions (2 Points Each, 20 Points Total)

1) Most economic data are obtained

A) through randomized controlled experiments.

B) by calibration methods.

C) through textbook examples typically involving ten observation points.

D) by observing real-world behavior.

2) Two random variables X and Y are independently distributed if all of the following conditions

hold, with the exception of

A) Pr(Y = y| X = x) = Pr(Y = y).

B) knowing the value of one of the variables provides no information about the other.

C) if the conditional distribution of Y given X equals the marginal distribution of Y.

D) E(Y|X) = E[E(Y|X)].

(CNN) -- Tension is high in Turkey as questions loom Friday over who is responsible for a suicide bombing at the U.S. Embassy in Ankara.

A Turkish security guard was killed and the bomber died, authorities say.

There are conflicting accounts concerning how many were wounded.

Ankara police and health officials said two were injured while Ankara Gov. Aladdin Yuksel said one person was hurt.

A senior U.S. official said no Americans were wounded.

The "terrorist blast" occurred at 1:13 p.m. at a checkpoint on the perimeter of the embassy, U.S. State Department spokeswoman Victoria Nuland said.

"We are working closely with the Turkish national police to make a full assessment of the damage and the casualties, and to begin an investigation," she said.

Images from CNN sister network CNN Turk showed