(Test Bank) Business Analytics

Jaggia, 2

Math & Statistics

Test Bank

2nd Edition

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Description

Test Bank for Business Analytics, The downloadable file consists of 428 pages, and the total size of the file is 5.95 MB. Purchase now only for highly discounted price.

Author(s): Jaggia

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Study Note Preview

Version 1 1 CHAPTER 1 TRUE/FALSE - Write 'T' if the statement is true and 'F' if the statement is false. 1) The ability to use qualitative reasoning with quantitative tools allows management to make decisions to improve business performance. ⊚ true ⊚ false 2) The use of historical information to predict what could happen in the future describes prescriptive analytics. ⊚ true ⊚ false 3) Data are the compilation of facts, figures, or other contents, both numerical and non-numerical. ⊚ true ⊚ false 4) Generally speaking, it is not feasible to obtain complete population data due to expense and near impossibility to examine every member of the population. ⊚ true ⊚ false 5) Collecting height data annually on the sample set of participants is an example of time series data. ⊚ true ⊚ false 6) Structured and unstructured data are only machine generated. ⊚ true ⊚ false 7) Numerical variables are either discrete or continuous. Version 1 2 ⊚ true ⊚ false 8) When each piece of data in a file is separated by a comma, it is called delimiter and the file is called a comma-spliced file. ⊚ true ⊚ false 9) When coding in HTML, <table> is a tag used to provide structure for textual data. ⊚ true ⊚ false 10) In XML, tags are not case-sensitive and are interchangeable. For example, <City>and <city>represent the same pieces of information. ⊚ true ⊚ false 11) Sally created a table that summarizes the dollar amount of last year’s sales for each store. This is an example of descriptive analytics. ⊚ true ⊚ false 12) Social media data, such as Twitter, Facebook, and TicTok are examples of structured data. ⊚ true ⊚ false 13) The characteristics marital status and income are examples of observations. ⊚ true ⊚ false Version 1 3 MULTIPLE CHOICE - Choose the one alternative that best completes the statement or answers the question. 14) Which of the following broad categories is not a type of analytic technique? A) manipulative analytics B) descriptive analytics C) predictive analytics D) prescriptive analytics 15) The people of Appleton, WI represent the __________blank, whereas we analyze the education level of a subset or __________blank to make inferences about the population. A) information; cross-section B) population; information C) items; sample D) population; sample 16) A massive volume of both structured and unstructured data that is extremely difficult to manage, process, and analyze is known by which catch phrase? A) wrangling B) big data C) data mining D) general data 17) The 2019 FIFA Women’s World Cup contained 52 matches in total with 24 teams competing. The use of __________blank data will display team standings during and at the end of the tournament. A) split-section B) organized C) cross-sectional D) numerical Version 1 4 18) According to a report in US Today, 26% of young people between the ages of 19–28 have at least two tattoos. What does the 26% represent? A) categorical data B) random data C) population D) sample set 19) According to a report in US Today, 38% of young people between the ages of 18–29 have at least one tattoo. What does the 38% represent? A) categorical data B) random data C) population D) sample set 20) According to a report in US Today, 38% of young people between the ages of 19–31 have at least one tattoo. What do the overall observations in the study represent? A) categorical data B) random data C) population D) sample set 21) According to a report in US Today, 38% of young people between the ages of 18–29 have at least one tattoo. What do the overall observations in the study represent? A) categorical data B) random data C) population D) sample set 22) Mary asks her friends on Facebook for recommendations for the best restaurants in Chicago. The results are then placed in a table for review. What does the data represent? Version 1 5 A) time-series data B) cross-sectional data C) numerical data D) quantitative data 23) In big data, the most important aspect of any analytic initiative is __________blank. A) volume B) veracity C) values D) variety 24) What term refers to the credibility and quality of data? A) volume B) veracity C) values D) variety 25) When compiling data, it is important to know data comes in all types, forms, and granularity. This is known as A) volume. B) veracity. C) values. D) variety. 26) A New York Times article notes that there are an increasing number of people calling for tech companies to ease their grip on the personal data of consumers. The concern is that a handful of companies holds most of the data. The immense amount of data is also called Version 1 6 A) volume. B) veracity. C) values. D) variety. 27) Unstructured data is best defined as A) not conforming to a predefined, row-column format. B) not conforming to a way to analyze data. C) conforming to a predefined, row-column format. D) conforming to a managing velocity. 28) Tobias Smith is working with his company’s data to examine inventory information. His intent is to use the variables to express ratios on inventory turnover. Based on this description, what is the strongest level of measurement being used? A) continuous variable B) interval scale C) categorical D) ratio scale 29) The time in minutes to travel from city A to city B is what type of variable? A) distraction B) discrete numerical C) categorical D) continuous numerical 30) The time in hours spent sleeping per day is what kind of variable? Version 1 7 A) distraction B) discrete numerical C) categorical D) continuous numerical 31) Molly Nelson has been collecting temperatures in degrees Fahrenheit, daily over the past five spring seasons, to determine the optimal point to plant her heirloom tomatoes. Because the difference between each degree is the same, irrelevant of the temperature, this is what type of measurement scale? A) ratio B) nominal C) ordinal D) interval 32) Cassidy is researching the impacts of eating breakfast on college students who have classes prior to 9 am. To do this, she issued a Likert scale questionnaire to the students, with a scale of 1 through 10 to answer a series of 20 questions. What is the type of measurement scale? A) ratio B) nominal C) ordinal D) interval 33) A large retailer is asking each customer at checkout for their zip code. If the zip code is the only recorded variable, what would the summarized results field headers be in tabular format? A) zip code B) customer number, zip code, count C) zip code, count D) count Version 1 8 34) A large retailer is asking each customer at checkout for their zip code. If the zip code is the only recorded variable, what is the type of measurement scale? A) ratio B) nominal C) ordinal D) interval 35) Which one is a drawback of interval-scaled data? A) The zero point is arbitrarily chosen. B) The degree of measurement is not a whole number. C) The scale is categorized and qualitative. D) The scale in nominal and zero point is meaningful. 36) Of the following numerical variables, which is continuous? A) number of newborn babies B) number of goals scored C) cars sold by a car dealer D) height 37) Of the following numerical variables, which is continuous? A) number of goals scored B) number of stocks C) number of children D) weight 38) Which one of the following variables is numerical? Version 1 9 A) city B) height C) hair color D) religion 39) Which one of the following variables is numerical? A) city B) population C) state D) color 40) An instructor hands out course evaluations where students have a rank of 0 to 5. What is the best way for the data to be measured? A) filtered B) ordinal C) nominal D) numerical 41) During the winter, the ice festival committee measures the depth of the ice during the month of February. What is the type of measurement scale? A) ratio B) interval C) nominal D) numerical 42) At the local animal shelter, each animal is marked if they are a boy or a girl. What is this type of measurement scale? Version 1 10 A) filtered B) ordinal C) nominal D) numerical 43) The following table is an example of what type of format? Inv_Nbr Inv_Name Inv_Cost 12232 Filter, Air $9.65 13425 Gasket $4.32 19932 Battery $32.00 A) hypertext B) extensible C) delimited D) fixed-width 44) What is the following file format called? Inv_Nbr, Inv_Name, Inv_Cost 876521,battery,45.00 A) delimited format B) extensible markup C) fixed-width format D) hypertext format 45) What type of markup language is this? <Data> <Inventory> Inv_Nbr>102304</Inv_Nbr> Inv_Name>Filter</Inv_Name> </Inventory> </Data> Version 1 11 A) HTML B) XML C) DFF D) JSON 46) The following is an example of which markup language? { “Inventory”: [ { “Inv_nbr”: “0199284”, “Inv_Name”: “Filter” } ] } A) HTML B) XML C) DFF D) JSON 47) The following is an example of which markup language? <table> <tr> <th> Inventory_Nbr </th> <th> Inventory Description </th> </tr> </table> A) HTML B) XML C) DFF D) JSON 48) Which is not a viable markup language? Version 1 12 A) HTML B) XML C) DFF D) JSON 49) Which of the following is not related to data privacy? A) Data collection B) Data ethics C) Data usage D) Data transmission 50) __________blank is a set of data that are organized and processed in a meaningful and purposeful way. A) Data B) Knowledge C) Statistics D) Information 51) Which of the following is an example of a fixed-width format? A)Cust_Nbr Cust_Name Cust_Bal 1232 Mike Barnes $1,059.65 1325 Lakshmi Singh $2,914.32 1972 Seo-Jun Hak $932.00 B)Cust_Nbr,Cust_Name,Cust_Bal 1232,Mike Barnes,$1,059.65 1325,Lakshmi Singh,$2914.32 1972,Seo-Jun Hak,$932.00 Version 1 13 C)<table> <tr> <th> Cust_Nbr </th> <th> Cust_Name</th> <th> Cust_Bal</th> </tr> </table> D){ “Customer”: [ { “Cust_nbr”: “1325”, “Cust_Name”: “Lakshmi Singh” } ] } 52) Which of the following is an example of a JSON markup language? A)Cust_Nbr Cust_Name Cust_Bal 1232 Mike Barnes $1,059.65 1325 Lakshmi Singh $2,914.32 1972 Seo-Jun Hak $932.00 B)Cust_Nbr,Cust_Name,Cust_Bal 1232,Mike Barnes,$1,059.65 1325,Lakshmi Singh,$2914.32 1972,Seo-Jun Hak,$932.00 C)<table> <tr> <th> Cust_Nbr </th> <th> Cust_Name</th> <th> Cust_Bal</th> </tr> </table> Version 1 14 D){ “Customer”: [ { “Cust_Nbr”: “1325”, “Cust_Name”: “Lakshmi Singh”, “Cust_Bal”: “$2,914.32” } ] } Version 1 15 Answer Key Test name: Chap 01_2e_Jaggia 1) TRUE Business analytics allows for the combination of qualitative reasoning with quantitative tools to identify key business problems and translate them into improved business processes. 2) FALSE What could happen in the future describes predictive analytics, whereas “what should we do” describes prescriptive analytics. 3) TRUE The term data is defined as a compilation of facts, figures, or other contents, both numerical and non-numerical. 4) TRUE Obtaining population data is expensive and it is generally impossible to examine every member of the population. 5) TRUE Time series data are collected over several time periods on a certain group of people. 6) FALSE Structured and unstructured data can be both human-generated and machine-generated. 7) TRUE Numerical variables assume meaningful numerical values and can be categorized as either discrete or continuous, whereas categorical variables assume names or labels. 8) FALSE The file is called a comma-separated value (CSV) file or comma-delimited file.