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Auburn BUAL 2600 FINAL EXAM || with 100% Errorless Answers.
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C. 2.74 correct answers Given the sample data set (225, 226, 232, 228, 229), what is the standard deviation? Population Variance correct answers σ² is the symbol for 23.00 correct answers If the variance for a population of 25 observations is equal to 529, the standard deviation is equal to...

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  • November 2, 2024
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  • 2024/2025
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Auburn BUAL 2600 FINAL EXAM || with 100% Errorless
Answers.
C. 2.74 correct answers Given the sample data set (225, 226, 232, 228, 229), what is the standard
deviation?

Population Variance correct answers σ² is the symbol for

23.00 correct 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 correct 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. correct answers
According to Bell (2013), what has changed in the way analytics works that shaped the way it
works today?

Big data correct answers ____________ is a term used to describe data sets so large that
traditional methods of storage and analysis are inadequate

Interval correct 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 correct answers The "what" of the W's refers to

Relational database correct answers In a __________, two of more separate data tables are linked
together so that the information can be merged across them

Respondent correct 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 correct 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 correct 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 correct answers What is the second rule of data analysis?

, 26% correct answers What percent of 2005 respondents reported that their primary choice of
childcare option was Public Daycare?

Marginal distribution by year correct answers Calculation of the percent of 2005 respondents
requires calculation part of the ________________.

Frequency Table correct answers When looking at the counts for two categorical variables,
which of the following is an appropriate table?

Violation of the area principle correct 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 correct answers Sampling to sample differences are
called ______________ and are ___________________ .

Stratified random correct 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 correct 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 correct 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 correct 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?

Nonresponse bias correct answers If individuals who do not respond have common
characteristics that differ from those that do respond, your sample will suffer from
_______________.

Sample correct answers Statistics are derived from data taken from a(n)
____________________.

61.50 correct answers Given the sample data set (332, 332, 331, 331, 314), what is the variance?

Sample standard deviation correct answers "s" is the symbol for

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