We define the stochasic variables Y 1 and Y 2 the following way: Y 1 : Hourly
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Question:
We define the stochasic variables Y1 and Y2 the following way:
Y1: Hourly wage in period 1
Y2: Hourly wage in period 2
The hourly wage in period 1 is normally distributed with a mean and variance2 which means:
Y1N(,2)
The hourly wage in period 2 is given by:
Y2 =+Y1+U where Y1 and U are independent andUN(0,v2)
Questions
Assume that =0. Let=350 and 2=1123465. Also let=350(1) and v2=123465(12).
a) Give the marginal distributions of Y1 and Y2.
b) Show that for>0 , the following is true :E(Y2Y1=275)<E(Y2)
c) Now let =0.90. Calculate P(Y2275Y1275)andP(Y2425Y1275)
You can use the following results ( for when =0.90 )
P(Y1275,Y2275)0.193
P(Y1275,Y2425)0.250
d) Give a short interpretation of the results in b) and c).
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