BUSINESS 802
FIRST EXAM KEY A
FALL 1992
MANAGERIAL ECONOMICS
MULTIPLE CHOICE QUESTIONS (25 pts, 1pt each)
1.
Movement along a demand curve is indicated by the quantity effect of a change in:
A.
advertising.
B.
price of other goods.
C.
income.
>
D.
price.
2.
A decrease in demand is caused by:
A.
an increase in price.
B.
a decrease in price.
>
C.
a decrease in advertising.
D.
an increase in the price of substitutes.
3.
A decrease in employerpaid health costs leads to a:
>
A.
shift
in supply.
B.
shift in demand.
C.
movement along the supply curve.
D.
movement along the demand curve.
4.
A method for predicting buyer response to hypothetical changes in product quality is provided by:
A.
field studies.
B.
regression analysis.
C.
market experiments.
>
D.
consumer surveys.
5.
Demand estimation in a controlled environment is possible with:
A.
field studies.
B.
regression analysis.
>
C.
market experiments.
D.
consumer surveys.
6.
A relation known with certainty is a:
A.
statistical relation.
B.
crosssection relation.
>
C.
deterministic relation.
D.
timeseries relation.
7.
A linear model implies:
>
A.
a constant effect of X on Y.
B.
constant elasticity.
C.
a loglinear relation.
D.
a constant effect of Y on X.
8.
A multiple regression model necessarily involves:
A.
a linear relation.
>
B.
more than one X variable.
C.
a multiplicative relation.
D.
more than one Y variable.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document2
9.
In a simple regression model, the correlation coefficient is:
A.
equal to one.
B.
greater than one.
C.
less than one.
>
D.
the square root of the coefficient of determination.
10.
Holding all else equal, the corrected coefficient of determination falls with:
A.
a decrease in the number of estimated coefficients.
B.
an increase in sample size.
>
C.
a decrease in R
2
.
D.
an increase in the standard error of the estimate.
11.
A sample of market data taken at a point in time is a:
>
A.
crosssection.
B.
statistical series.
C.
time series.
D.
stratified sample.
12.
The standard deviation of the dependent Y variable after controlling for the influence of all X variables is given by:
A.
R
2
B.
¯
R
2
>
C.
S.E.E.
D.
.
ˆ
Y
t
13.
A measure of statistical significance for explained variation is given by the:
A.
tstatistic.
>
B.
Fstatistic.
C.
coefficient of determination.
D.
corrected coefficient of determination.
14.
Multicollinearity is caused by:
A.
a linear XY relation.
B.
a loglinear XY relation.
>
C.
high correlation among the X variables.
D.
high correlation between Y and at least one X variable.
15.
Heteroskedasticity is produced by:
A.
normally distributed residuals.
B.
randomly distributed residuals.
>
C.
nonconstant variance in the disturbance term.
D.
autocorrelation.
16.
Central tendency is measured by the:
>
A.
mode.
B.
This is the end of the preview.
Sign up
to
access the rest of the document.
 Spring '11
 smith
 Economics, Standard Deviation, Supply And Demand, QY, linear demand curve

Click to edit the document details