QUESTION 1
For a combination of α (level of significance) = 0.05, n (sample
size) =...
QUESTION 1
For a combination of α (level of significance) = 0.05, n (sample
size) = 25, k (number of independent variables in the model) = 1
and D (Durbin-Watson statistic) = 3.30 , what statistical decision
should be made when testing the null hypothesis of no negative
autocorrelation?
a.
Neither reject nor not reject the null hypothesis.
b.
Do not reject the null hypothesis.
c.
Accept the null hypothesis.
d.
Reject the null hypothesis
1 points
QUESTION 2...
5. Consider a simple case with only four independently and
identically distributed (iid) observations, X1, X2,...
5. Consider a simple case with only four independently and
identically distributed (iid) observations, X1, X2, X3, X4, on a
random variable X. Consider these two estimators:
µˆ1 = 1/12 (2X1 + 4X2 + 4X3 + 2X4), µˆ2 = 1/12 (X1 + 5X2 + 5X3 +
X4).
a Show that each is unbiased, and that one is more efficient
than the other.
b Show that the usual sample mean is more efficient than either.
Explain why the others given above...
Let the population have N=7 units, with {(unit,value)} =
{(A,-1),(B,+1),(C,-2),(D,+3),(E,-4),(F,+5),(G,-6)}. The design is
as follows: first...
Let the population have N=7 units, with {(unit,value)} =
{(A,-1),(B,+1),(C,-2),(D,+3),(E,-4),(F,+5),(G,-6)}. The design is
as follows: first choose A or B at random; if A then choose from
{C,D} at random, if B then choose from {E,F,G} at random. 1) Find
the first-order inclusion probabilities (note that the sample size
n is fixed at 2).
Verify (show numerically for this example) that the
Horvitz-Thompson estimator is unbiased for the population total.
(Hint: find the probability of each sample and the value...
1) Answer 1-3 based on the Demand curve for normal good
X is given by Qd...
1) Answer 1-3 based on the Demand curve for normal good
X is given by Qd = 40,000 - 10,000Px The Total revenue (TR)
function based on the above demand is TR = 4Q -
0.0001Q2
A) True
B) False
2) Based on the above, the Marginal Revenue, MR,
function is MR = 4 - 0.0002Q
A) True
B) False
3) Based on the above, TR is maximized at Q = 20,000
units
A) True
B) False
4) 55.57% of...