Exam (elaborations)
GEB 4522 Exam 2 UCF Questions with Correct Answe
- Course
- Institution
GEB 4522 Exam 2 UCF Questions with Correct Answe
[Show more]
Content preview
GEB 4522 Exam 2 UCF Questions with CorrectAnswers
Which of the following will help address data limitations? Correct
Answer-As you're gathering data, don't just tell people the data you
want, tell them what you're trying to do with it.
Which of the following is not a question that should be asked when
evaluating external data? Correct Answer-Does the data indicate the
correct solution to the problem?
"high quality data" from employee Correct Answer-doing the work
(conformance to standards)
"high quality data" from client Correct Answer-receiving the product
(fitness of use)
data relevance Correct Answer-does the data meet the basic needs for
which they were used? can the data be used for additional purposes?
data accuracy Correct Answer-what are likely to be the main variables of
interest? how accurate does our data have to be to predict outcomes?
data timeliness Correct Answer-how current does this information need
to be to predict...? how do delays effect the use of data?
,data comparability Correct Answer-is it appropriate to combine several
databases into a data warehouse to facilitate the data's use in 1)
exploratory analyses 2) modeling 3) statistical explanation
data completeness Correct Answer-no records are missing and that no
records have missing data elements
three ways of retaining high quality data Correct Answer-1) keep bad
data out of the database/ list
2) proactively look for bad data already entered
3) let the bad data find you and then fix it
three measures of central tendencies Correct Answer-mean, median,
mode
mean Correct Answer-one way to locate the center of a set of numbers
Which measure of central tendency is mostly affected by the impact of
outliers? Correct Answer-Mean
Which measure of central tendency minimizes the impact of outliers?
Correct Answer-Median
median Correct Answer-when you have a outlier, it won't throw
everything off
, mode Correct Answer-could possible have two
calculation of variance Correct Answer-1) subtract the mean from each
score (result is a standard deviation)
2) average the deviations (if the average is large we have variability)
3) if deviations have minus signs square them
4) the average of the squared deviations if variance
population Correct Answer-all members of a specific group
sample Correct Answer-a part of a population that is used to describe the
characteristics of the whole population
standard deviation Correct Answer-the square root of the average
squared deviation from the mean OR the distance a number is from the
mean
true Correct Answer-true or false: the square root of the variance is the
standard deviation
Which smooths out periodic peaks and valleys in a data? Correct
Answer-Moving average
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller cracker. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
82871 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now