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BUAL 2600 FINAL EXAM QUESTIONS AND ANSWERS GRADED
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Terms in this set (232)
process that examines data using a variety of statistical tools and involves the
analytics discover, interpretation, and application of meaningful patterns in data toward
effective decision making in the business workplace
1. Business problem
2.data collection/ management
3.descriptive analysis
steps of the analytics process
4. predictive analysis
5. prescriptive analysis
6. The goal of the process
What is Quantitative data? numerical data that can be measured
quantitative data is _______ measured
what are the two types of continuous or discrete
quantitative data?
What is qualitative data? data that is non numerical
what are the 2 types of qualitative data? ordinal or nominal
What is nominative data? a qualitative variable that has no meaningful ordering the the categories
What is ordinal data? a qualitative variable that ORDER matters
What type of data is gender qualitative, nominal
What type of data is a car qualitative, nominal
what type of data is color qualitative, nominal
What type of data is clothing size qualitative, ordinal
What type of data is college class status qualitative, ordinal
(Fr, So, Jr, Sr)
What is discrete data? whole numbers
What is continuous data? fractions or decimala
What are electronic methods to Point of sale system, Click stream data, Social media data, Sensor data
collect data?
accept payments from customers; keep track of sales and inventory for online
What is point of sale system?
and or physical stores
the pathway a user takes through their online journey; how the user navigates
What is click stream data?
online from search to purchase
Example of clickstream data? amazon and google
computer based sharing of ideas thoughts and information through virtual
What is social media data?
networks
What are examples of social media data Facebook and twitter
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, 4/15/25, 10:55 BUAL 2600 Final |
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a device that detects the change in the enviornment and converts into a
What is sensor data?
measurable digital signal for reading or further processing
What is a population? the entire group of individuals from which we want information
What is a census? have a data for all of the population
What is a smaple? part of the population (a subset) we actually collect as the dataset to analyze
choosing a sample of data from the population has equal chance of being chosen
What is random smapling?
as part of the sample
What are the two most common biased convenient and voluntary
sampling methods?
select a sample of people/things because it is convenient or easy to get data;
What is convenient sampling?
readily available data
self selected sample; those who want to participate. Usually participate because
What is voluntary data?
they have a strong opinion on the issue
there is a # of individuals from the population that is chosen in such a way that
What is a simple random sample (srs)?
every set of n individuals has an equal chance of being selected
divide population into non-overlapping groups (strata) then select a random
Stratified random smaple
sample from each strata
systematic sampling list population select random starting point sample each nth element
divide population into clusters and then randomly select clusters, sample
multistage cluster sampling
everyone/everything in each cluster
What is a bias? if subjects are chosen to favor certain outcomes
What is convenience sample? choosing individuals because they are easy to reach results
people who choose themselves by respinding to a general appeal. Voluntary
What is voluntary response smaple? response samples often show bias because people with strong opinions may be
more likely to respond
What is sampling error? wrong sampling method
sample does not include representation from the entire population, Common
What is coverage bias?
when sampling nation of world wide, Using biased sampling methods
sampling procedures result in collecting data that does not answer he business
What is measurement error?
problem
What is Errors of observation? data entered incorrectly
using a systematic starting at "1" and sampling error
arbitrarily choosing "skip number" is an
example of which bias?
target uses SRS to obtain a sample of sampling error
12,500 store managers nationwide is an
example of which bias?
kia chooses to use systematic when a sampling error
known defect is present is an example of
which bias?
Instructor chooses systematic using sampling error
alphabetized list of students/list
of students males then females
is an example of which bias?
Stitchfix uses SRS to sample customers sampling error
buying clothes vs. accessories is an
example of which bias?
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