• Wrong document? Swap it for free
  • Written by students who passed
  • Immediately available after payment
  • Read online or as PDF
Sell
Where do you study
Your language
Document preview thumbnail
Preview 3 out of 19 pages
Exam (elaborations)

Analytics Final Exam questions and answers Update.

Document preview thumbnail
Preview 3 out of 19 pages

Analytics Final Exam questions and answers Update.Analytics Final Exam questions and answers Update.Analytics Final Exam questions and answers Update.Analytics Final Exam questions and answers Update.Analytics Final Exam questions and answers Update.Analytics Final Exam questions and answers Update.Analytics Final Exam questions and answers Update.Analytics Final Exam questions and answers Update.

Content preview

Analytics Final Exam questions and answers
2024/2025 Update.

A manager at G'Dawg Records (motto: double declining balances are the fo'zhizzle) wants
ij ij ij ij ij ij ij ij ij ij ij ij



to know his company's revenue and profit in its previous quarter. Which of the following
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



business analytics will help the manager? - ANS ✔✔ - Descriptive analytics
ij ij ij ij ij ij ij ij ij ij ij ij




Predictive analytics - ANS ✔✔ - Detects patterns in historical data and extrapolates them
ij ij ij ij ij ij ij ij ij ij ij ij ij



forward in time
ij ij ij




A database is: - ANS ✔✔ - A structured collection of related files and data
ij ij ij ij ij ij ij ij ij ij ij ij ij ij




Which of the following is an example of a measure of continuous metrics? - ANS ✔✔ -
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



Weight and volume of a sheet of steel
ij ij ij ij ij ij ij ij




Which of the following is a disadvantage of ordinal data? - ANS ✔✔ - They have no fixed
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



units of measurement
ij ij ij




Identify and briefly describe each of the four things that differentiate big data from not so big
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



data. What are the benefits and drawbacks of each of the four things as they relate to an
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



audit? - ANS ✔✔ - Big Data
ij ij ij ij ij ij ij




Volume - Terabytes, petabytes and zettabytes 10^21*
ij ij ij ij ij ij ij



Variety - Unstructured (text, voice, video)
ij ij ij ij ij



Velocity - Data in motion (streaming) ij ij ij ij ij



Veracity - Untrusted and uncleansed ij ij ij ij




Not so big dataij ij ij




Volume - Megabytes and gygabites ij ij ij ij



Variety - Structured and rational ij ij ij ij



Velocity - Data at rest ij ij ij ij



Veracity - Trusted and cleansed ij ij ij ij ij




Benefits and Drawbacks ij ij




Volume - More to sample, but less time to test everything.
ij ij ij ij ij ij ij ij ij ij



Veracity - Bigger sample to rely on, but there could be more fake data
ij ij ij ij ij ij ij ij ij ij ij ij ij



Variety - You have different kinds of data to test but have to organize more.
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



Velocity - Always have more data to test, but hard to pick which data is always coming for
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



you.
ij

,Which of the following charts provides the MOST useful means for displaying data over
ij ij ij ij ij ij ij ij ij ij ij ij ij



time? - ANS ✔✔ - Line chart
ij ij ij ij ij ij ij




Skin E-G local college professor/rapper (motto: all cool cats use accrual accounting) wants
ij ij ij ij ij ij ij ij ij ij ij ij



to know to understand the relative proportion of each type of fan (e.g. hipsters) to the total.
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



What chart should Skin E-G use? - ANS ✔✔ - Pie chart
ij ij ij ij ij ij ij ij ij ij ij ij




Observations consisting of PAIRS of variable data are required to construct what kind of ij ij ij ij ij ij ij ij ij ij ij ij ij



chart? - ANS ✔✔ - Scatter
ij ij ij ij ij ij




Skin E-G has data consisting of price, price/earning ratio and market capitalization for
ij ij ij ij ij ij ij ij ij ij ij ij



seven different stocks on a particular day. He wishes to plot all three variables in two
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



dimensions. Which chart should Skin E-G use? - ANS ✔✔ - Bubble chart
ij ij ij ij ij ij ij ij ij ij ij ij ij




Which of the following charts show three-dimensional data? - ANS ✔✔ - Surface chart
ij ij ij ij ij ij ij ij ij ij ij ij ij




How to calculate the interquartile range - ANS ✔✔ - The difference between the first and
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



third quartiles, Q3 - Q1.
ij ij ij ij ij




A ____ is a description of the approach that is used to obtain samples from a population
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



prior to any data collection activity. - ANS ✔✔ - Sampling plan
ij ij ij ij ij ij ij ij ij ij ij ij




Which of the following types of samples using random procedures to select a sample? -
ij ij ij ij ij ij ij ij ij ij ij ij ij ij



ANS ✔✔ - Probabilistic sampling
ij ij ij ij ij




Which of the following sampling methods bases its selection of samples on the ease of
ij ij ij ij ij ij ij ij ij ij ij ij ij ij



data collection? - ANS ✔✔ - Convenience sampling
ij ij ij ij ij ij ij ij




______ sampling applies to populations that are divided into natural subsets and allocates
ij ij ij ij ij ij ij ij ij ij ij ij



the appropriate proportion of samples to each subset. - ANS ✔✔ - Stratified
ij ij ij ij ij ij ij ij ij ij ij ij ij




A _______ is a single number derived from sample data that is used to estimate the value
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



of a population parameter. - ANS ✔✔ - Point estimate
ij ij ij ij ij ij ij ij ij ij




A sampling plan consists of five different pieces. To determine if any member of the sales
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



force is giving illegal kickbacks to customers, develop a sampling plan that includes all five
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



of the pieces. You should generally just need a single statement per piece. - ANS ✔✔ -
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



Objective - Find any illegal kickbacks to customers
ij ij ij ij ij ij ij ij



Target Population - Customers ij ij ij



Population frame (the list from which the sample is taken) - Members of the sales force ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



Operational procedures for collecting data - using excel ij ij ij ij ij ij ij ij



Statistical tools for data analysis - Pivot table showing payments to customers ij ij ij ij ij ij ij ij ij ij ij




Which of the following propositions describes an existing theory or belief? - ANS ✔✔ - Null
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



hypothesis
ij

, Which of the following is the initial step in conducting a hypothesis test? - ANS ✔✔ -
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



Identifying the population parameter of interest
ij ij ij ij ij ij




Skin E-G wishes to determine if average profit from the sale of his crossover album
ij ij ij ij ij ij ij ij ij ij ij ij ij ij



exceeds $100. Which of the following is appropriate hypothesis test? - ANS ✔✔ - H0:
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



Population mean profit from sale <= 100 vs. H1: population mean profit from sale > $100
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij




? Quiz 6 Q 3
ij ij ij ij




Which of the following is a type 1 error? - ANS ✔✔ - The null hypothesis is actually true and
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



the hypothesis test fails to reject it
ij ij ij ij ij ij ij




Level of significance is the probability of - ANS ✔✔ - Incorrectly rejecting an actually true
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



null hypothesis
ij ij




There are three types of tailed tests. Please briefly describe each of the three types and
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



given an audit-centric example of when you would use each one. - ANS ✔✔ - Left side one-
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



tailed test - when you want to find out the negative balances of accounts.
ij ij ij ij ij ij ij ij ij ij ij ij ij




Right side one tailed tests - when you want to find out the biggest payments are from sales.
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij




Two-tailed test - when you just want to focus on the center of sales not the extremes. ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij




A regression model that involves a single independent variable is called? - ANS ✔✔ -
ij ij ij ij ij ij ij ij ij ij ij ij ij ij



Simple regression
ij ij




Which of the following is true of linear functions used in predictive analytical models? - ANS
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



✔✔ - It is used when there is a steady decrease or increase over a range of a variable
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij




In regression, the value of the ______ gives the measure of fit of the line to the data. - ANS
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



✔✔ - R-squared
ij ij ij




_________ provide information about the unknown values of the true regression ij ij ij ij ij ij ij ij ij ij



coefficients, accounting for sampling error. - ANS ✔✔ - Confidence Intervals
ij ij ij ij ij ij ij ij ij ij ij




A (n) ______ is an extreme value that is different from the rest of the data. - ANS ✔✔ -
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



Outlier
ij




The delphi method used for forecasting - ANS ✔✔ - Uses a panel of experts, whose
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



identities are typically kept confidential from one another, to respond to a sequence of
ij ij ij ij ij ij ij ij ij ij ij ij ij ij



questions.
ij




In forecasting, what is an index? - ANS ✔✔ - A single measure that weights multiple
ij ij ij ij ij ij ij ij ij ij ij ij ij ij ij



indicators and provides a measure of overall expectation.
ij ij ij ij ij ij ij ij

Document information

Uploaded on
October 24, 2024
Number of pages
19
Written in
2024/2025
Type
Exam (elaborations)
Contains
Questions & answers
$18.49

Wrong document? Swap it for free Within 14 days of purchase and before downloading, you can choose a different document. You can simply spend the amount again.
Written by students who passed
Immediately available after payment
Read online or as PDF

Seller avatar
Reputation scores are based on the amount of documents a seller has sold for a fee and the reviews they have received for those documents. There are three levels: Bronze, Silver and Gold. The better the reputation, the more your can rely on the quality of the sellers work.
Wisdoms
4.5
(304)
Sold
801
Followers
64
Items
6965
Last sold
2 days ago



Why students choose Stuvia

Created by fellow students, verified by reviews

Quality you can trust: written by students who passed their tests and reviewed by others who've used these notes.

Didn't get what you expected? Choose another document

No worries! You can instantly pick a different document that better fits what you're looking for.

Pay as you like, start learning right away

No subscription, no commitments. Pay the way you're used to via credit card and download your PDF document instantly.

Student with book image

“Bought, downloaded, and aced it. It really can be that simple.”

Alisha Student

Working on your references?

Create accurate citations in APA, MLA and Harvard with our free citation generator.

Working on your references?

Frequently asked questions