4/15/25, 11:07
AM
BUAL 5380 EXAM 1 QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS VERIFIED LATEST UPDATE
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A useful way of comparing the c) Both of these options
distribution of a numerical variable
across categories of some categorical
variable is:
a) Side-by-side boxplots
b) Side-by-side histograms
c) Both of these options
d) Neither of these options
In a simple linear regression analysis, the b) 80%
following sums of squares are produced:
SST =400, SSE= 80, SSR = 320
The proportion of the variation in Y that
is explained by the variation in X is:
a) 20%
b) 80%
c) 25%
d) 50%
A sample of a population taken at c) cross-sectional
one particular point in time is
categorized as:
a) categorical
b) discrete
c) cross-sectional
d) time-series
1/
6
, 4/15/25, 11:07
AM
If the correlation is close to 0, then we d) A cluster of points with no apparent relationship
expect to see:
a)An upward sloping cluster of points on
the scatterplot
b)A downward sloping cluster of points
c) A cluster of points around a trendline
d) A cluster of points with no apparent
relationship
e)We cannot say what the scatterplot
should look like based on the correlation
An important condition when interpreting c) all of the other independent variables remain constant
the coefficient for a particular
independent variable X in a multiple
regression equation is that:
a) the dependent variable will
remain constant
b) the dependent variable will be
allowed to vary
c) all of the other independent variables
remain constant
d) all of the other independent variables
be allowed to vary
To examine relationships between two a) Counts and corresponding charts of the counts
categorical variables, we can use
a)Counts and corresponding charts of
the counts
b) Scatterplots
c) Histograms
d) None of these options
The adjusted R2 adjusts R2 for: d) the number of explanatory variables in a multiple regression model
a) non-linearity
b) outliers
c) low correlation
d) the number of explanatory variables
in a multiple regression model
2/
6
AM
BUAL 5380 EXAM 1 QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS VERIFIED LATEST UPDATE
Leave the first rating
Save
A useful way of comparing the c) Both of these options
distribution of a numerical variable
across categories of some categorical
variable is:
a) Side-by-side boxplots
b) Side-by-side histograms
c) Both of these options
d) Neither of these options
In a simple linear regression analysis, the b) 80%
following sums of squares are produced:
SST =400, SSE= 80, SSR = 320
The proportion of the variation in Y that
is explained by the variation in X is:
a) 20%
b) 80%
c) 25%
d) 50%
A sample of a population taken at c) cross-sectional
one particular point in time is
categorized as:
a) categorical
b) discrete
c) cross-sectional
d) time-series
1/
6
, 4/15/25, 11:07
AM
If the correlation is close to 0, then we d) A cluster of points with no apparent relationship
expect to see:
a)An upward sloping cluster of points on
the scatterplot
b)A downward sloping cluster of points
c) A cluster of points around a trendline
d) A cluster of points with no apparent
relationship
e)We cannot say what the scatterplot
should look like based on the correlation
An important condition when interpreting c) all of the other independent variables remain constant
the coefficient for a particular
independent variable X in a multiple
regression equation is that:
a) the dependent variable will
remain constant
b) the dependent variable will be
allowed to vary
c) all of the other independent variables
remain constant
d) all of the other independent variables
be allowed to vary
To examine relationships between two a) Counts and corresponding charts of the counts
categorical variables, we can use
a)Counts and corresponding charts of
the counts
b) Scatterplots
c) Histograms
d) None of these options
The adjusted R2 adjusts R2 for: d) the number of explanatory variables in a multiple regression model
a) non-linearity
b) outliers
c) low correlation
d) the number of explanatory variables
in a multiple regression model
2/
6
