Business Statistics Skills Test
As
Variable X changes, Variable Y changes but in only one direction. This is an
example of a ______________ relationship.
a. Positive
b. Linear
c. Curvilinear
d. Negative
This
question is based upon the figure shown below
Which
of the above conventions is used to represent the population mean?
a. 1
b. 2
c. 3
d. 4
The
level of significance in ANOVA refers to the chance that you will ______________.
a. Modify
the null hypothesis
b. Reject
the alternative hypothesis by mistake
c. Accept
the null hypothesis by mistake
d. Reject
the null hypothesis by mistake
Correlation
analysis assumes that Variable X and Variable Y are:
a. Correlated
b. Curvilinear
c. On a
spectrum
d. Independent
The
alternative hypothesis states that the difference in the means of the treatment
and control groups is ______________.
a. Not
equal to zero
b. Not
equal to the mean
c. Not
equal to the variance
d. Not
equal to the standard deviation
Costco
is preparing to give out surveys to all its weekend shoppers as part of its new
promotional campaign. This is an example of a ______________ study.
a. Qualitative
b. Computerized
c. Quantitative
d. Descriptive
Which
of the following is not a data collection method?
a. Designed
Experiments
b. Observational
Studies
c. Surveys
d. Managers'
experience
Correlational
analysis is concerned with the ______________ and ______________
of the relationship between two
variables.
a. Null;
void
b. Cause;
effect
c. Nature;
strength
d. Slope;
intercept
What
are the main sources of stress during your workday? is an example of a(an) ______________
question.
a. Open-ended
b. Close-ended
c. Hypothesis
d. Leading
Conducting
a focus group is an example of ______________ research design.
a. Quantitative
b. Experimental
c. Qualitative
d. Hypothetical
______________
research design is usually used when
little information is available about the object of study.
a. Longitudinal
b. Exploratory
c. Long-term
d. Descriptive
A
correlation coefficient of weight and cholesterol (HDL) is deemed to be
negative. As weight increases, HDL levels
a. Remain
the same
b. Decrease
c. Increase
d. Double
in value
This
question is based upon the figure shown below
In
the above table, the probability of choosing a Male that Own a Wii out of the
entire sample is:
a. 24/70
b. 32/70
c. 24/32
d. 35/70
A
stem-and-leaf display is a way to organize ______________ data into chunks?
a. Ordinal
b. Nominal
c. Numerical
d. Interval
A
marketing specialist is studying the effect of retirement on spending habits.
Retirement, in this case, is the ______________ variable.
a. Input
b. Output
c. Dependent
d. Independent
A
good ______________ translates a
research question into a format that can be tested using statistical analysis
a. Contingency
table
b. Testing
group
c. Sample
d. Hypothesis
A
scatter plot shows the relationship between Variable X and Variable Y ______________.
a. In a
graph format
b. In a
time-series format
c. In a
contingency table format
d. In
an Excel worksheet format
The
difference between a ______________ and
a ______________ is a very important
concept in Business Statistics.
a. Parameter,
Sample
b. Population,
Sample
c. Statistic,
Population
d. Population,
Parameter
The
null hypothesis states that the difference in the means of the treatment and
control groups is ______________.
a. Null
b. Large
c. Small
d. Zero
A
very large random error term (ei) indicates a ______________ relationship between the dependent variable
and independent variable(s).
a. Weak
b. Strong
c. Linear
d. Predictable
When
conducting business research, the first step in the process is to formulate a ______________.
a. Research
question
b. Data
analysis method
c. Sampling
method
d. Study
design
Numerical
data or measure that describes a sample is ______________.
a. Parameter
b. Population
c. Statistic
d. Survey
A
correlational study is likely to use ______________ research design.
a. Survey
b. Exploratory
c. Causal
d. Descriptive
A
Type II error is the probability of ______________ the null hypothesis when it should be ______________.
a. Rejecting;
modified
b. Rejecting;
accepted
c. Accepting;
rejected
d. Accepting;
modified
Which
of the following gives you information on the spread or scatter of your data?
a. Measures
of dispersion
b. Measures
of data range
c. Dispersion
d. Ratio
and Interval
What
produces a number that takes into account how far every data point differs from
the mean
calculated
for the entire data set?
a. Median
b. Range
c. Standard
deviation
d. Variance
There
are ______________ coefficients that must
be calculated in the simple linear regression equation
a. 3
b. 2
c. 4
d. 5
Which
of the following sample items are chosen from a larger population without any
regard for their probabilities or occurrences?
a. Probability
sampling
b. Direct
sampling
c. Indirect
sampling
d. Non-probability
sampling
The
population that you are interested in studying is called a ______________.
a. Target
Population
b. Set
Population
c. Sample
Group
d. Survey
Group
One
of the limitations of multiple regression is that it (is) ______________.
a. Easy
to administer
b. Time-consuming
c. Requires
a small sample
d. Contains
a small error term
This question is based upon the figure shown
below
In
the above table, the probability of choosing a Female that does NOT own a Wii
out of the entire sample is:
a. 27/38
b. 11/27
c. 27/70
d. 38/70
All
of the following are advantages of the survey and questionnaires method of
business research EXCEPT:
a. Easy
to administer
b. Provides
causative information
c. Low
cost
d. Provides
descriptive information
Gaining
information from government archives and data repositories is an example of ______________
data.
a. Primary
b. Tertiary
c. Survey
d. Secondary
This
question is based upon the figure shown below
The
mean of the above sample is ______________.
a. 36
b. 39
c. 37
d. 38
______________
regions are regions that are necessary
to make business decisions on a data curve.
a. Contingency
b. Critical
c. Null
d. Alternative
A ______________
presents data from two sets of
observations or variables.
a. Contingency
table
b. Side-by-side
bar chart
c. Scatter
plot
d. Pie
chart
In
the simple linear regression model, the intercept is the ______________.
a. Crossing
of the line at the X-axis
b. Crossing
of the line at the Y-axis
c. Slope
of the trend line
d. Slope
of the regression line
Correlation
analysis provides information about the relationship between two variables
EXCEPT:
a. Nature
b. Cause
c. Strength
d. Direction
To
study the effectiveness of a new car oil on engines, two sets of cars are split
into ______________ and ______________ groups.
a. Independent;
dependent
b. Dependent;
independent
c. Treatment;
control
d. Treatment;
dependent
IBM
and Apple are interested in opening stores in the same small Midwestern town.
The companies pose ______________ to
each other's sales figures due to competition.
a. Strength
b. Weakness
c. Opportunity
d. Threat