Quantitative Methods for Business Exam Solutions
Course Introduction
Quantitative Methods for Business introduces students to the essential mathematical and statistical techniques used to analyze and solve business problems. The course covers topics such as data collection and presentation, probability distributions, hypothesis testing, regression analysis, forecasting, decision analysis, and linear programming. Emphasis is placed on applying these quantitative methods to real-world business scenarios to inform decision-making, optimize processes, and interpret quantitative results effectively. Through case studies, practical exercises, and analytical tools, students will develop the skills necessary to make data-driven decisions in various functional areas of business.
Recommended Textbook
Essentials of Business Analytics 1st Edition by Jeffrey D. Camm
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12 Chapters
688 Verified Questions
688 Flashcards
Source URL: https://quizplus.com/study-set/1130
2
Chapter 1: Introduction
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30 Verified Questions
30 Flashcards
Source URL: https://quizplus.com/quiz/22189
Sample Questions
Q1) The U.S. Internal Revenue Service uses ______ to identify patterns that distinguish questionable annual personal income tax filings.
A) utility theory
B) prescriptive analytics
C) data mining
D) decision analysis
Answer: C
Q2) GE Asset Management uses optimization models to:
A) assess the risk of investment portfolios.
B) forecast future financial performance.
C) successfully manage commercial real estate risk.
D) decide on how to invest its cash received from insurance policies.
Answer: D
Q3) All the three descriptive, predictive, and prescriptive analytics are used in:
A) Marketing and HR analytics.
B) Marketing and Health Care analytics.
C) Health Care and HR analytics.
D) Health Care and Financial analytics.
Answer: B
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Page 3
Chapter 2: Descriptive Statistics
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60 Verified Questions
60 Flashcards
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Sample Questions
Q1) Compute the standard deviation for the following sample data.
32 41 36 24 29 30 40 22 25 37
A) 5.96
B) 6.41
C) 5.42
D) 6.75
Answer: D
Q2) Any data value with a z-score less than -3 or greater than +3 is treated as a(n) A) outlier.
B) usual value.
C) whisker.
D) z-score value.
Answer: A
Q3) For data having a bell-shaped distribution, approximately _____ percent of the data values will be within one standard deviation of the mean.
A) 95
B) 66
C) 68
D) 97
Answer: C
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Chapter 3: Data Visualization
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61 Verified Questions
61 Flashcards
Source URL: https://quizplus.com/quiz/22191
Sample Questions
Q1) Bar charts use
A) horizontal bars to display the magnitude of the quantitative variable.
B) vertical bars to display the magnitude of the quantitative variable.
C) horizontal and vertical bars to display the magnitude of the quantitative variable.
D) vertical bars to display the magnitude of the qualitative variable.
Answer: A
Q2) We create multiple dashboards
A) to help the user scroll vertically and horizontally to see the entire dashboard.
B) so that each dashboard can be viewed on a single screen.
C) to make sure the KPIs are not displayed in the data dashboard.
D) so that all dashboards can be viewed on a single screen.
Answer: B
Q3) A chart that is recommended as an alternative to a pie chart is a
A) bar chart.
B) line chart.
C) stacked column chart.
D) box plot.
Answer: A
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5
Chapter 4: Linear Regression
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60 Verified Questions
60 Flashcards
Source URL: https://quizplus.com/quiz/22192
Sample Questions
Q1) The _____ is a measure of the error in using the estimated regression equation to predict the values of the dependent variable in a sample.
A) sum of squares due to regression (SSR)
B) error term
C) sum of squares due to error (SSE)
D) residual
Q2) A regression analysis involving one independent variable and one dependent variable is referred to as a _____.
A) factor analysis
B) time series analysis
C) simple regression
D) data mining
Q3) The _____ is the range of values of the independent variables in the data used to estimate the regression model.
A) confidence interval
B) codomain
C) experimental region
D) validation set
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Chapter 5: Time Series Analysis and Forecasting
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58 Verified Questions
58 Flashcards
Source URL: https://quizplus.com/quiz/22193
Sample Questions
Q1) _____ is the term used for a time series whose statistical properties are independent of time.
A) Cluster
B) Stationary time series
C) Trend
D) Constant time series
Q2) Which of the following measures of forecast accuracy is susceptible to the problem of positive and negative forecast errors offsetting one another?
A) Mean absolute error
B) Mean forecast error
C) Mean squared error
D) Mean absolute percentage error
Q3) The moving averages and exponential smoothing methods are appropriate for a time series exhibiting _____.
A) horizontal pattern
B) cyclical pattern
C) trends
D) seasonal effects
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7
Chapter 6: Data Mining
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60 Verified Questions
60 Flashcards
Source URL: https://quizplus.com/quiz/22194
Sample Questions
Q1) Which of the following methods is used by the analyst to decide if a particular variable needs to be retained in the sample during the sampling process?
A) Descriptive statistics and data visualization
B) Regression
C) Outlier analysis
D) Data Testing
Q2) One minus the overall error rate is often referred to as the _____ of the model.
A) sensitivity
B) accuracy
C) specificity
D) cutoff value
Q3) Which of the following reasons is responsible for the increase in the use of data-mining techniques in business?
A) The lack of methods to electronically track data
B) The dearth of information to analyze and interpret
C) The ability to electronically warehouse data
D) The ability to manually analyze all the data
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8
Chapter 7: Spreadsheet Models
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60 Verified Questions
60 Flashcards
Source URL: https://quizplus.com/quiz/22195
Sample Questions
Q1) A company asked one of their analysis team to analyze and create models that help decide whether they should manufacture a particular product or outsource its production. The different components are given below:
Fixed Cost, FC = $25,000
Material Cost per Unit, MC = $2.15
Labor Cost per Unit, LC = $2.00
Outsourcing Cost per Unit, O = $4.50
Note that per-unit material and labor cost together make up the variable cost per unit. a. Build an influence diagram that illustrates how to calculate the difference in cost of manufacturing and outsourcing.
b. Using mathematical notation, give a mathematical model for calculating the difference in cost of manufacturing and outsourcing.
c. Implement your model from part (b) in Excel using the principles of good spreadsheet design.
d. If the company wants to make 30,000 units of a particular product, what are the savings due to outsourcing?
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Chapter 8: Linear Optimization Models
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60 Verified Questions
60 Flashcards
Source URL: https://quizplus.com/quiz/22196
Sample Questions
Q1) A(n) _____ refers to a set of points that yield a fixed value of the objective function.
A) objective function coefficient
B) infeasible solution
C) objective function contour
D) feasible region
Q2) The _____ value for each less-than-or-equal-to constraint indicates the difference between the left-hand and right-hand values for a constraint.
A) objective function coefficient
B) slack
C) unbounded
D) surplus
Q3) The slack value for binding constraints is:
A) always a positive integer.
B) zero.
C) a negative integer.
D) equal to the sum of the optimal points in the solution.
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Chapter 9: Integer Linear Optimization Models
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60 Verified Questions
60 Flashcards
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Sample Questions
Q1) A chocolate making company largely produces one particular type of crunchy chocolate bar. There are two machines in the plant that produces this chocolate bar. The maintenance costs per day incurred on these two machines are $100 and $120, respectively. The manufacturing cost per chocolate bar is $2.5 for Machine-1 and $2 for Machine-2. The maximum daily production capacity for Machine-1 and Machine-2 are 1100 and 1250, respectively, and the company must produce at least 1000 chocolate bars per day. Develop and solve an integer programming model for minimizing the total cost.
Q2) Reference - 9.1. The levels - small, medium, and large of the size attribute are modeled using:
A) objective function coefficients.
B) slack variables.
C) binary variables.
D) nonlinear coefficients.
Q3) The part-worth for each of the attribute levels in a conjoint analysis is determined by
A) regression analysis
B) sensitivity analysis
C) online surveys
D) word-of-mouth
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Page 11
Chapter 10: Nonlinear Optimization Models
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60 Verified Questions
60 Flashcards
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Sample Questions
Q1) A feasible solution is _____ if there are no other feasible points with a better objective function value in the entire feasible region.
A) infeasible
B) unbounded
C) nonlinear
D) a global optimum
Q2) A function that is bowl-shaped down is called a _____ function.
A) concave
B) convex
C) conic
D) linear
Q3) A portfolio optimization model used to construct a portfolio that minimizes risk subject to a constraint requiring a minimum level of return is known as_____.
A) capital budgeting pricing model
B) market share optimization model
C) Hauck maximum variance portfolio model
D) Markowitz mean-variance portfolio model
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Chapter 11: Monte Carlo Simulation
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59 Verified Questions
59 Flashcards
Source URL: https://quizplus.com/quiz/22199
Sample Questions
Q1) In simulation analysis, the _____ of random variables can be adjusted to determine the impact of the assumptions about the shape of the uncertainty on the results.
A) probability distributions
B) ranges
C) relative frequencies
D) manual generations
Q2) The _____ function in Excel is used to compute the statistics required to create a histogram.
A) NORM.INV
B) RAND
C) FREQUENCY
D) STDEV.S
Q3) The Excel add-in _____ is used to design a spreadsheet simulation model.
A) Analytic Solver Platform
B) Goal Seek
C) Solver
D) GPSS
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13
Chapter 12: Decision Analysis
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60 Verified Questions
60 Flashcards
Source URL: https://quizplus.com/quiz/22200
Sample Questions
Q1) Chance nodes are
A) nodes provided at the end of the states-of-nature branches.
B) nodes indicating points where an uncertain event will occur.
C) nodes provided at the end of the decision alternative branches where a payoff is shown.
D) nodes indicating points where a decision is made.
Q2) The parameter R in an exponential utility function represents
A) the decision maker's risk tolerance.
B) the utility function's error tolerance.
C) the posterior probability.
D) the likely profit/loss from the investment.
Q3) Reference - 12.1: Which is the recommended decision alternative using the conservative approach?
A) D1
B) D5
C) D2
D) D3
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