...University IU QUANTITATIVE METHODS FOR BUSINESS (FALL 2013) SAMPLE TEST MIDTERM EXAMINATION PART 01: MULTIPLE CHOICE QUESTIONS (20 POINTS) 1. (1 pt) Given the following two-person game, which strategy can be eliminated by use of dominance? Y1 Y2 13 0 X2 6 8 X3 12 14 a. X2 c. Y2 b. Y1 e. X1 d. X3 The following payoff table is using for next 6 questions. 2. (1 pt) What decision would an optimist make? a. Alternative 1 c. State of Nature A b. Alternative 2 e. Alternative 3 d. Do Nothing 3. (1 pt) What decision would a pessimist make? a. Alternative 1 c. State of Nature B b. Alternative 2 e. Alternative 3 d. Do Nothing 4. (1 pt) What is the best decision if using Criterion Realism (Hurwicz) approach? α = 0.7 a. Alternative 1 c. State of Nature C b. Alternative 2 e. Alternative 3 d. Do Nothing Powered by TAs (Le Phuoc Thien Thanh and Le Nhat Ho) | Fall 2013. [Quantitative Methods for Business] | MIDTERM EXAMINATION: SAMPLE TEST X1 1 International University IU 5. (1 pt) What is the best decision if using Equally Likely (Laplace) approach? a. Alternative 1 c. State of Nature A b. Alternative 2 e. Alternative 3 d. Do Nothing 6. (1 pt) What is the best decision if using Minimax regret approach? a. Alternative 1 c. State of Nature A b. Alternative 2 e. Alternative 3 d. Do Nothing 7. (1 pt) Given probability of state of nature P(A) = 30%, P(B) = 30%...
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...variables with or without the effects of other variables taken into account (Cohen, Cohen, West, & Aiken, 2003). Multiple Regression Models and Significance Tests Many practical questions involve the relationship between a dependent or criterion variable of interest (call it Y) and a set of k independent variables or potential predictor variables (call them X1, X2, X3,..., Xk), where the scores on all variables are measured for N cases. For example, you might be interested in predicting performance on a job (Y) using information on years of experience (X1), performance in a training program (X2), and performance on an aptitude test (X3). A multiple regression equation for predicting Y can be expressed a follows: (1) [pic] To apply the equation, each Xj score for an individual case is multiplied by the corresponding Bj value, the products are added together, and the constant A is added to the sum. The result is Y(, the predicted Y value for the case. For a given set of data, the values for A and the Bjs are determined mathematically to minimize the sum of squared deviations between predicted Y( and the actual Y scores. Calculations are quite complex, and best performed with the help of a computer, although simple cases with only one or two predictors can be solved by hand...
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...Page 21 to 27 1. Discuss the differences between statistics as numerical facts and statistics as a discipline or field of study. 10. The Wall Street Journal (WSJ) subscriber survey (October 13, 2003) asked 46 questions about subscriber characteristics and interests. State whether each of the following questions provided categorical or quantitative data and indicate the measurement scale appropriate for each. a. What is your age? Quantitative b. Are you male or female? Categorical c. When did you first start reading the WSJ? High school, college, early career, midcareer, late career, or retirement? Categorical d. How long have you been in your present job or position? Quantitative e. What type of vehicle are you considering for your next purchase? Nine response categories include sedan, sports car, SUV, minivan, and so on. Categorical 15. The Food and Drug Administration (FDA) reported the number of new drugs approved over an eight-year period (The Wall Street Journal, January 12, 2004). Figure 1.9 provides a bar chart summarizing the number of new drugs approved each year. a. Are the data categorical or quantitative? Quantitative b. Are the data time series or cross-sectional? Data time series c. How many new drugs were approved in 2003? About 20 d. In what year were the fewest new drugs approved? How many? 2002 e. Comment on the trend in the number of new drugs approved by the FDA over the Eight-year period. The FDA approved of more new drugs between the years...
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...variables with or without the effects of other variables taken into account (Cohen, Cohen, West, & Aiken, 2003). Multiple Regression Models and Significance Tests Many practical questions involve the relationship between a dependent or criterion variable of interest (call it Y) and a set of k independent variables or potential predictor variables (call them X1, X2, X3,..., Xk), where the scores on all variables are measured for N cases. For example, you might be interested in predicting performance on a job (Y) using information on years of experience (X1), performance in a training program (X2), and performance on an aptitude test (X3). A multiple regression equation for predicting Y can be expressed a follows: (1) [pic] To apply the equation, each Xj score for an individual case is multiplied by the corresponding Bj value, the products are added together, and the constant A is added to the sum. The result is Y(, the predicted Y value for the case. For a given set of data, the values for A and the Bjs are determined mathematically to minimize the sum of squared deviations between predicted Y( and the actual Y scores. Calculations are quite complex, and best performed with the help of a computer, although simple cases with only one or two predictors can be solved by...
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...EC/315 Midterm Examination Name:__________________________________________ Directions: This test is open-book and open notes and covers the content from weeks 1 through week 4 of EC/315. The test will be typed and submitted in the Dropbox marked Midterm Exam. The midterm is due the last day of Week 4. PROBLEM 1 (Weight 40 points). NBC TV news, in a segment on the price of gasoline, reported last evening that the mean price nationwide is $1.50 per gallon for self-serve regular unleaded. A random sample of 35 stations in the Milwaukee, WI, area revealed that the mean price was $1.52 per gallon and that the standard deviation was $0.05 per gallon. At the .05 significance level, can we conclude that the price of gasoline is higher in the Milwaukee area? Calculate the p-value and interpret. PROBLEM 2: (Weight 40 points). Suppose Babsie generated the following probability distribution: X p(x) 5 7 10 12 15 ! .25 .30 .25 .05 .15 a. b. c. d. Is this probability distribution discrete or continuous? Explain your reasoning. Calculate the expected value of X. Show your work!! Calculate the variance of X. Show your work!!! Calculate the standard deviation. Show your work!! ! PROBLEM 3: (Weight 40 points). Babsie is a public affairs specialist at Park University. A press release issued by Babsie based on some research claims that Park University students study at least as much as the national average for students at four year universities. Across the nation, 73 percent of...
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...Page 1 of 26 Shaheed Udham Singh College of Engg. &Technology,Tangori(Mohali) Department of computer Science & engineering TABLE OF CONTENTS 1) Format for synopsis. 2) Format & Guidelines for Midterm Report. 3) Guidelines for preparing six-months industrial training report 3.1) Standards for Project Report 3.2) Format of Title Page 3.3) Declaration 3.4) Acknowledgement 3.5) Certificate 3.6) Abstract 3.7) Table of contents for the final report. 3.8) List of figures 3.9) Format of final report. 4) Annexure I 5) Annexure II 6) Annexure III 7) Annexure IV 8) Annexure V 9) Annexure VI Page 2 of 26 Guidelines for Preparing Six Months Industrial Training Report Department of Computer science & Engineering Shaheed Udham Singh College of Engineering and Technology,Tangori(Mohali) (www.suscet.ac.in) SHAHEED UDHAM SINGH COLLEGE OF ENGG. & TECHNOLOGY Page 3 of 26 (NAME OF THE DEPARTMENT) Format for Synopsis Title page: 1. Name of Student and PTU registration No cum Roll No 2. Present official Address with E-mail, telephone No 3. Branch 4. Session 5. Name of Company 6. Proposed Project Topic: 7. Name of Department/College Introduction to Company(may not exceed 3 pages including Figs.) Brief Introduction to Project (may not exceed 3 pages) Design of solution (may not exceed 3 pages) Methodology/ Planning of work (may not exceed 4 pages) Facilities provided for the proposed work. Page 4 of 26 SHAHEED UDHAM SINGH COLLEGE OF ENGG. & TECHNOLOGY (NAME OF THE...
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...MATH201 - Assignment 1 1. Conde Nast Traveler magazine conducts an annual survey of subscribers in order to determine the best places to stay throughout the world. Table 1.6 shows a sample of nine European hotels (Cond Nast Traveler, January 2000). The price of a standard double room during the hotels high season ranges from $ (lowest price) to $$$$ (highest price). The overall score includes subscribers evaluations of each hotels rooms, service, restaurants, location/atmosphere, and public areas; a higher overall score corresponds to a higher level of satisfaction. (a) How many elements are in this data set? (b) How many variables are in this data set? (c) Which variables are qualitative and which variables are quantitative? (d) What type of measurement scale is used for each of the variables? 2. Refer to Table 1.6. (a) What is the average number of rooms for the nine hotels? (b) Compute the average overall score. (c) What is the percentage of hotels located in England? (d) What is the percentage of hotels with a room rate of $$? 3. All-in-one sound systems, called minisystems, typically include an AM/FM tuner, a dual- cassette tape deck, and a CD changer in a book-sized box with two separate speakers. The data in Table 1.7 show the retail price, sound quality, CD capacity, FM tuning sensitivity and selectivity, and the number of tape decks for a sample of 10 minisystems (Consumer Reports Buying Guide 2002). (a) How many elements does this data set contain? (b) What is the population...
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...EC/315 Midterm Examination Name:__________________________________________ Directions: This test is open-book and open notes and covers the content from weeks 1 through week 4 of EC/315. The test will be typed and submitted in the Dropbox marked Midterm Exam. The midterm is due the last day of Week 4. PROBLEM 1 (Weight 20 points). NBC TV news, in a segment on the price of gasoline, reported last evening that the mean price nationwide is $1.50 per gallon for self-serve regular unleaded. A random sample of 35 stations in the Milwaukee, WI, area revealed that the mean price was $1.52 per gallon and that the standard deviation was $0.05 per gallon. At the .05 significance level, can we conclude that the price of gasoline is higher in the Milwaukee area? Calculate the p-value and interpret. PROBLEM 2: (Weight 20 points). Suppose Babsie generated the following probability distribution: X p(x) 5 7 10 12 15 .25 .30 .25 .05 .15 a. b. c. d. Is this probability distribution discrete or continuous? Explain your reasoning. Calculate the expected value of X. Show your work!! Calculate the variance of X. Show your work!!! Calculate the standard deviation. Show your work!! PROBLEM 3: (Weight 20 points). Babsie is a public affairs specialist at Park University. A press release issued by Babsie based on some research claims that Park University students study at least as much as the national average for students at four year universities...
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...(NAME OF THE DEPARTMENT) Format for Synopsis Title page: 1. Name of Student and PTU registration No cum Roll No 2. Present official Address with E-mail, telephone No 3. Branch 4. Session 5. Name of Company 6. Proposed Project Topic: 7. Name of Department/College Introduction to Company(may not exceed 3 pages including Figs.) Brief Introduction to Project (may not exceed 3 pages) Design of solution (may not exceed 3 pages) Methodology/ Planning of work (may not exceed 4 pages) Facilities provided for the proposed work. SHAHEED UDHAM SINGH COLLEGE OF ENGG. & TECHNOLOGY (NAME OF THE DEPARTMENT) FORMAT & GUIDELINES FOR MIDTERM REPORT (Size = 20, Times, Bold, Small Caps) Contents of Midterm Report (Size = 13, Times) The midterm report must contain the elements given in the listing below: 1) Cover sheet 2) Title page 3) Abstract 4) Table Of Contents 5) Introduction 6) Title of the project/Assignment 7) Objectives 8) Schedule of activities 9) Conclusions 10) Achievements till date. 11) Remaining Work. 12) Solution to problems (if any) GUIDELINES FOR PREPARING MIDTERM REPORT: 1) Students may use descriptive, informative section and subsection titles for the body of midterm report. Use the appropriate tense to describe the activity: "past work was done;" & "future work will be done." 2) The midterm will include several body sections that include continuing work, so each body section of the midterm, should be divided into "Work Completed to Date", in which student...
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...Q1. (a) Degree of freedom = n – k – 1 = 33 – 3 – 1 = 29 Critical t score c0.025 = 2.045 95% CI for F = 733 2.045 * 253 = 215.615 to 1250.385 This is statistically significant at 5% since the interval does not include 0. (Check: computed t = 733/253 = 2.89 > 2.045) 95% CI for S = -.805 2.045 * .752 = -2.34284 to .73284 This is NOT statistically significant at 5% since the interval includes 0. (Check: computed t = -.805/.752 = - 1.07048 > - 2.045) 95% CI for A = 74 2.045 * 12.4 = 48.642 to 99.358 This is statistically significant at 5% since the interval does not include 0. (Check: computed t = 74/12.4 = 5.968 > 2.045) (b) All three estimates are expected to be positive. The fact that one of them has the wrong sign (βS) may reflect negative omitted variable bias. Multicollinearity obviously is a problem and may be responsible for the wrong sign of βS too. Variable S looks irrelevant but it should be relevant in theory. Its small t-stat may be due to omitted variable or multicollinearity. Q2. Using the intuition from simple case of omitted variable: (a) y = apple consumption, x1 = price of banana, x2 = price of orange yt = 0 + 1 x1,t + 2 x2,t + ut If we leave out x2, bias on β1 depends on (1) whether x1 and x2 are correlated in the sample which mostly likely is positive (e.g. inflation), and whether price of orange has positive or negative effect on the annual consumption of apple in the population (sign of 2) which should be positive too (law...
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...Stat 141 R1 - Lecture #35 Announcements: 1) Assignment #11 Question 5: The answer is wrong … should be “fail to reject” but MyStatLab wants “reject”... so give the wrong answer for full marks in this question 2) Exam: STAT 141 R1 3 hrs 1400 Wed Apr 17 MAIN GYM, ~45 Multiple Choice Questions Chapters 7, 8, 18-28 …. some pre MT skills will be required. Simple Linear Regression …. continued Last time: Ex) Predicting final exam marks (%) from midterm exam marks (%) in a class of 88 students: Student | #1 | #2 | … | #88 | Midterm mark | 67% | 72% | … | 88% | Final mark | 62% | 50% | … | 91% | Stat 141 R1 - Lecture #35 page 2 Given x = midterm percentage, y = final percentage, n=88, x = 67.812, y = 52.643, sx = 17.922, sy = 25.430, r = 0.718 ∑(yi–ŷi)2 = 27278.82 We had calculated: The slope and intercept of the sample line of best fit: * sample line of best fit: y= -16.443 + 1.019 x An estimate for σ (standard deviation about the population line): se Given SSE = ∑(yi–ŷi)2 = 27278.82 : se2=SSEn-2=27278.8288-2=317.196 →σ≈se=317.196=17.810 Stat 141 R1 - Lecture #35 page 3 Inference for the population slope β1 When the 4 basic assumptions of the SLR model are satisfied: o The relationship between x and y is sufficiently linear. Presuming linearity, this means, at any x, με = 0. o The std. dev. of ε is the same for any particular x (constant). o The...
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...| Date/Time: | Wednesday 7:00 pm to 10 pm | | Location : | ACE 009 | | Instructor Office Hours: | By appointment | E-Mail Address : | adms3585@yorku.ca | Calendar Description This course, in conjunction with AP/ADMS 3595 3.00, develops thorough knowledge and understanding of generally accepted accounting principles and financial statement analytical skills by examining various technical areas of financial accounting. Prerequisite: AP/ADMS 2500 3.00. Prior to Fall 2009 Prerequisite: AK/ADMS 2500 3.0. Course credit exclusion: AK/ADMS 3585 3.00. Learning Outcomes After completion of the course, apart from mastering the technical knowledge of the revenue and asset side of the financial statements, students should also 1. Understand the importance of ethics in the accounting profession and realize potential conflicts of interest that one may encounter in the profession. 2. Begin to learn how to see the inter-relationship between accounting issues, analyse them, and integrate the findings to draw reasonable conclusions. 3. Begin to learn the basics of case writing and communicate effectively. 4. Understand the importance of teamwork and learn how to develop work plans and resolve conflicts. The students in this course are expected to achieve the following learning objectives through the completion of various assignments required for the course: * Technical Competencies in Financial Reporting that include the role of financial reporting, the...
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...Unit 3 – Survey Sample Size Marietta Bloise American InterContinental University Abstract What you’re going to view are three different groups which took polls. You are going to see how many people were contacted. How did the pollsters contact people for the polls? They are going to use the information for real estate, what group of people each political party will need to reach out to for the midterm elections. How generations have changed with thoughts toward marriage, religion, and etc. then the dangerous habits in America. Introduction Entertainment Survey “The Ipsos poll conducted Nov. 29-30, 2012. The survey is a nationally representative sample of via Ipsos’ U.S. online omnibus. With a sample of this size, the results are considered accurate within +3.1 percentage points 19 times out of 20, of what they would have been had the entire population of adults in the United States been polled”. (Cast of "Honey Boo Boo" Tops List of Worst Neighbors in 2012; Miranda Lambert and Blake Shelton Named Most Desirable Celebrity Neighbors for 2013: Most Americans Do Not Want a Celebrity Neighbor, According to 6th Annual Zillow Celebrity Neighbor Survey PR Newswire [New York] 27 Dec 2012.) Basically the survey is stating no one wants to be neighbors of realty TV show Honey Boo Boo. “Forty five percent of adults do not want to live by celebrities, compared to last year survey which was 42%”. The most desirable...
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...Question 1 # sold | P(x) | 0 | 0.1 | 1 | 0.11 | 2 | 0.2 | 3 | 0.23 | 4 | 0.3 | 5 | 0.06 | Question 2: The average rate of occurrence of accidents was 8.15 per week. A) during that time, what is the probability of getting less than 3 accidents a week? Use poisson for this question. Since it is less that 3 accidents, x = 0,1,2 (Px=o) = [(8.15^0) (e^8.15)] / 0! = 0.00288735. (Px=1) = [(8.15^1) (e^8.15)] / 1! = 0.002353193. (Px=2) = [(8.15^2) (e^8.15)] / 2! = 0.009589362. Add all these results together, and p(x<3) is 0.01223119. B) The probability if an accident on the road is 0.295. Out of 10 reportable accidents, what is the probability that 2 occurred on the road? Use Binomial for this. Since it is exactly 2, we need to find P(x=2). Use the binomial formula, n = 10, x = 2, p = 0.295, and q is 0.705. = 10!/2!(10-2)! * 0.205 ^2 * q^ 10-2. Answer is 0.23898436. Question 3: 15% of drivers have a probationary license and 85% have a regular license. In a given year, 10% of drivers with probationary licenses are involved in an accident. 2.5% of regular drivers are involved in an accident. For this question it is better to draw a tree diagram. Question 4: Mean values for income for men are 100K, for woman, 80K. SD deviations of 20K and 15K respectively. Variables are normally distributed and independent. Calculate the 95th percentile, for men income. 95th p = 0.95. In the zscore table, we find a value of 1.64. Us e the formula for z-score (population) : 1...
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...Vietnam International University (VNU) – HCMC INTERNATIONAL UNIVERSITY (IU) Semester 01, Academic Year 2014 - 2015 ------o0o------ ---OOO--- MID-TERM EXAMINATION Duration: 150 Minutes SAMPLE TEST 06 Student ID: ................................ .................................................... Name: ........................................ Date: .......................... .................................... .................................... INSTRUCTIONS 1. This is an open book examination; 2. Calculator is allowed; 3. Discussion, material transfer, and electronic devices (including laptops, cell phones, and electronic dictionaries) are strictly prohibited. PART I : (Please answer on the QUESTION SHEET) 40 POINTS Use the following data for the next 3 questions: The following data are monthly rents paid by a sample of 30 households selected from a small city: 880 1081 721 1075 1023 775 1235 750 965 1210 985 1231 932 850 825 100 915 1191 1151 630 1175 952 1100 1140 750 1140 1370 960 1035 1280 1. What is the 78th percentile of the data set? a. 1160.6 b. 1177.88 c. 1151 d. 1171 e. None of the above, specify__________ 2. What is the IQR of the data set? a. 160.25 b. 153 c. 1270 d. 313.25 e. None of the above, specify__________ 3. What is the percentile rank for the observation, 1126.58? a. 56.77 d. 67 b. 66 e. None of the above, specify__________ c. 66.66 Use the following data...
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