BUAL 2600 FINAL EXAM QUESTIONS AND ANSWERS
2026
C. 2.74 - Answers - Given the sample data set (225, 226, 232, 228, 229), what is the
standard deviation?
Population Variance - Answers - σ² is the symbol for
23.00 - Answers - If the variance for a population of 25 observations is equal to 529, the
standard deviation is equal to
Target was not happy or excited - Answers - How did Target react to Duhigg wanting to
research about their analytics (Hill, 2012)?
The world is now more complex; if an analytics professional sees an opportunity where
analytics might be useful, the person still do the work or assemble an in-house team. -
Answers - According to Bell (2013), what has changed in the way analytics works that
shaped the way it works today?
Big data - Answers - ____________ is a term used to describe data sets so large that
traditional methods of storage and analysis are inadequate
Interval - Answers - What scale is the variable "Monthly Average High Temperature"
(Celsius) as published in the Calgary tourism brochure?
The variables which are measured or recorded - Answers - The "what" of the W's refers
to
Relational database - Answers - In a __________, two of more separate data tables are
linked together so that the information can be merged across them
Respondent - Answers - Kyle is testing the mental endurance of applicants for the
Southpark Regional Airlines. Kyle gives each applicant a two hour cognitive ability test.
This information is not used for employment decisions, but is a baseline measure which
the airline is collecting for future research. Each applicant has the ability and right to
refuse the test, but none have. Each applicant can be considered a(n)
___________________.
Qualitative, nominal - Answers - Looking above, Gender is an excerpt from a data file,
identify the kind of variable, scale, unit (if appropriate) and any special name (if
appropriate).
, Cross Sectional - Answers - Coach Playmore surveyed two hundred students in the
Spring 2017 semester about how many minutes exercised each day over the Fall 2016
semester. He asked for their best estimate upon recollection. This description indicates
that the data is
Make a picture - Answers - What is the second rule of data analysis?
26% - Answers - What percent of 2005 respondents reported that their primary choice
of childcare option was Public Daycare?
Marginal distribution by year - Answers - Calculation of the percent of 2005 respondents
requires calculation part of the ________________.
Frequency Table - Answers - When looking at the counts for two categorical variables,
which of the following is an appropriate table?
Violation of the area principle - Answers - When the area covered by a graphic is not
proportional to the data, ___________ has occurred (Keen shoes)
Sampling error; not an error or a mistake - Answers - Sampling to sample differences
are called ______________ and are ___________________ .
Stratified random - Answers - Suppose large urban school district decides to randomly
test kindergarten students for attention deficit disorder. There are thirty schools in the
district each with between six and nine kindergarten classes. The school board has a
210 page alphabetical list of all kindergarten students noting the gender of each as well
as their school. The list is sorted by school and then by gender. The board then selects
a proportion sample from each list, to make sure that each homogenous group is
proportionately represented in their sample. Then they test the selected students. What
type of sampling strategy is this?
Stratified random - Answers - To use a _________ sampling strategy, a researcher
must have available a complete sampling frame which lists the characteristics or
variables of each potential individual in order to sort people into homogenous groups.
Push Polls - Answers - _________________________, using leading and biased
questions, are frequently used by groups with an agenda and plan for particular results
to feed news headlines. This was illustrated by the video presentation in class.
Soil samples taken from 16 locations near a former waste dump - Answers - The EPA
took soil samples near a former industrial waste dump and checked each for evidence
of toxic chemicals. No elevated levels of harmful substances were found. What is the
sample?
2026
C. 2.74 - Answers - Given the sample data set (225, 226, 232, 228, 229), what is the
standard deviation?
Population Variance - Answers - σ² is the symbol for
23.00 - Answers - If the variance for a population of 25 observations is equal to 529, the
standard deviation is equal to
Target was not happy or excited - Answers - How did Target react to Duhigg wanting to
research about their analytics (Hill, 2012)?
The world is now more complex; if an analytics professional sees an opportunity where
analytics might be useful, the person still do the work or assemble an in-house team. -
Answers - According to Bell (2013), what has changed in the way analytics works that
shaped the way it works today?
Big data - Answers - ____________ is a term used to describe data sets so large that
traditional methods of storage and analysis are inadequate
Interval - Answers - What scale is the variable "Monthly Average High Temperature"
(Celsius) as published in the Calgary tourism brochure?
The variables which are measured or recorded - Answers - The "what" of the W's refers
to
Relational database - Answers - In a __________, two of more separate data tables are
linked together so that the information can be merged across them
Respondent - Answers - Kyle is testing the mental endurance of applicants for the
Southpark Regional Airlines. Kyle gives each applicant a two hour cognitive ability test.
This information is not used for employment decisions, but is a baseline measure which
the airline is collecting for future research. Each applicant has the ability and right to
refuse the test, but none have. Each applicant can be considered a(n)
___________________.
Qualitative, nominal - Answers - Looking above, Gender is an excerpt from a data file,
identify the kind of variable, scale, unit (if appropriate) and any special name (if
appropriate).
, Cross Sectional - Answers - Coach Playmore surveyed two hundred students in the
Spring 2017 semester about how many minutes exercised each day over the Fall 2016
semester. He asked for their best estimate upon recollection. This description indicates
that the data is
Make a picture - Answers - What is the second rule of data analysis?
26% - Answers - What percent of 2005 respondents reported that their primary choice
of childcare option was Public Daycare?
Marginal distribution by year - Answers - Calculation of the percent of 2005 respondents
requires calculation part of the ________________.
Frequency Table - Answers - When looking at the counts for two categorical variables,
which of the following is an appropriate table?
Violation of the area principle - Answers - When the area covered by a graphic is not
proportional to the data, ___________ has occurred (Keen shoes)
Sampling error; not an error or a mistake - Answers - Sampling to sample differences
are called ______________ and are ___________________ .
Stratified random - Answers - Suppose large urban school district decides to randomly
test kindergarten students for attention deficit disorder. There are thirty schools in the
district each with between six and nine kindergarten classes. The school board has a
210 page alphabetical list of all kindergarten students noting the gender of each as well
as their school. The list is sorted by school and then by gender. The board then selects
a proportion sample from each list, to make sure that each homogenous group is
proportionately represented in their sample. Then they test the selected students. What
type of sampling strategy is this?
Stratified random - Answers - To use a _________ sampling strategy, a researcher
must have available a complete sampling frame which lists the characteristics or
variables of each potential individual in order to sort people into homogenous groups.
Push Polls - Answers - _________________________, using leading and biased
questions, are frequently used by groups with an agenda and plan for particular results
to feed news headlines. This was illustrated by the video presentation in class.
Soil samples taken from 16 locations near a former waste dump - Answers - The EPA
took soil samples near a former industrial waste dump and checked each for evidence
of toxic chemicals. No elevated levels of harmful substances were found. What is the
sample?
