Search
Info
Warning
Danger

Study Resources (Business Management)

    57. Consider the following quarterly time series. ? Quarter Year 1 Year 2 Year 3 1 923 1,112 1,243 2 1,056 1,156 1,301 3 1,124 1,124 1,254 4 992 1,078 1,198 ? a. Construct a time series plot. What type of pattern exists in the data?b. Use a multiple regression model with dummy variables as follows to develop.
0 Views
View Answer
    11. ______________ involves descriptive statistics, data visualization, and clustering. a. Data exploration b. Data partitioning c. Data preparation d. Model assessment     12. ___________ is dividing the sample data into three sets for training, validation, and testing of the data-mining algorithm performance. a. Data sampling b. Data partitioning c. Data preparation d. Model assessment     13. Applying descriptive statistics and data visualization.
1 Views
View Answer
    57. ?A bank is interested in identifying different attributes of its customers who default on their loans and below is the sample data of 5000 customers. In the data table for the dummy variable loan in default status, 0 represents not in default and 1 represents in default. Partition the.
0 Views
View Answer
    56. ?A bank is interested in identifying different attributes of its customers and below is the sample data of 150 customers. For Gender, 0 represents Male and 1 represents Female. For Personal loan, 0 represents a customer who has not taken personal loan and 1 represents a customer who has.
0 Views
View Answer
    42. A bank is interested in identifying different attributes of its customers and below is the sample data of 150 customers. In the data table for the dummy variable Gender, 0 represents Male and 1 represents Female. And for the dummy variable Personal loan, 0 represents a customer who has.
0 Views
View Answer
    42. The Gatson manufacturing company has estimated the following components for a new product. Fixed cost = $50,000Material cost per unit = $2.15Labor cost per unit = $2.00Revenue per unit = $7.50   a. Construct a spreadsheet model and then construct a one-way data table with production volume as the column input and.
0 Views
View Answer
    52. A bank is interested in identifying different attributes of its customers and below is the sample data of 150 customers. For Gender, 0 represents Male and 1 represents Female. For Personal loan, 0 represents a customer who has not taken personal loan and 1 represents a customer who has.
0 Views
View Answer
    41. A bank is interested in identifying different attributes of its customers and below is the sample data of 150 customers. For Gender, 0 represents Male and 1 represents Female. For Personal loan, 0 represents a customer who has not taken personal loan and 1 represents a customer who has.
0 Views
View Answer
    43. A bank is interested in identifying different attributes of its customers and below is the sample data of 150 customers. In the data table for the dummy variable Gender, 0 represents Male and 1 represents Female. And for the dummy variable Personal loan, 0 represents a customer who has.
0 Views
View Answer
    45. 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 = $2.00Outsourcing.
0 Views
View Answer
      46. Consider the following time series data. Year Value 1 234 2 287 3 255 4 310 5 298 6 250 7 302 8 267 9 225 10 336   a. Use α = 0.2 to compute the exponential smoothing values for the time series. Compute MSE and a forecast for year 11.b. Use trial and error to find a value of the.
0 Views
View Answer
    48. The following times series shows the demand for a particular product over the past 10 months. Month Demand 1 324 2 311 3 303 4 314 5 323 6 313 7 302 8 315 9 312 10 326   a. Construct a time series plot. What type of pattern exists in the data? b. Develop a three-month moving average for this time series..
0 Views
View Answer
    53. The monthly sales (in hundreds of dollars) of a company are listed below. Month Sales ($100s) January 12,354 February 13,657 March 14,536 April 13,478 May 16,590 June 19,790 July 17,987 August 18,657 September 19,765 October 18,678 November 20,678 December 23,675 a. Construct a time series plot. What type of pattern exists in the data? b. Use simple linear regression analysis to find the parameters.
0 Views
View Answer
    51. A bank is interested in identifying different attributes of its customers and below is the sample data of 150 customers. For Gender, 0 represents Male and 1 represents Female. For Personal loan, 0 represents a customer who has not taken personal loan and 1 represents a customer who has.
0 Views
View Answer
    53. A bank is interested in identifying different attributes of its customers and below is the sample data of 150 customers. For Gender, 0 represents Male and 1 represents Female. For Personal loan, 0 represents a customer who has not taken personal loan and 1 represents a customer who has.
0 Views
View Answer
    55. ?A bank is interested in identifying different attributes of its customers and below is the sample data of 150 customers. For Gender, 0 represents Male and 1 represents Female. For Personal loan, 0 represents a customer who has not taken personal loan and 1 represents a customer who has.
0 Views
View Answer
    49. The average cost/unit for the production of a particular component at a manufacturing plant varies with the number of units produced in each batch. The data are given below. ?  Number of Units Produced Cost/Unit 0–49 $37.72 50–100 $25.02 ? Suppose the selling price of each unit is $35. a. Build a model to.
0 Views
View Answer
1. The set of recorded values of variables associated with a single entity is a(n) a. observation. b. data point. c. classification. d. location.     2. A(n)_______________ is often displayed as a row of values in a spreadsheet or database in which the columns correspond to the variables. a. record b. data point c. classification d. location     3. A characteristic or.
4 Views
View Answer
    21. A(n) __________ matrix displays a model’s correct and incorrect classification. a. cumulative lift b. classification confusion c. decile-wise lift chart d. ROC curve     22. _______ attempts to classify a categorical outcome as a linear function of explanatory variables. a. Linear regression b. Logistic regression c. Classification model d. Supervised learning     23. How many Class 1's are correctly classified as.
0 Views
View Answer
    56. Consider the following time series data: t yt 1 0.345 2 0.366 3 0.398 4 0.356 5 0.456 6 0.478 7 0.543 8 0.596 9 0.634 10 0.698 a. Construct a time series plot. What type of pattern exists in the data? b. Use simple linear regression analysis to find the parameters for the line that minimizes MSE for this time series. c..
0 Views
View Answer
    31. One minus the overall error rate is often referred to as the _____ of the model. a. sensitivity b. accuracy c. specificity d. cutoff value     32. An observation classified as part of a group with a characteristic when it actually does not have the characteristic is termed as a(n) a. false negative. b. false.
0 Views
View Answer
    47. The following time series shows the sales of a particular commodity over the past 15 weeks. Week Sales 1 1,123 2 1,157 3 1,138 4 1,120 5 1,130 6 1,132 7 1,188 8 1,151 9 1,129 10 1,118 11 1,125 12 1,147 13 1,162 14 1,190 15 1,137   a. Construct a time series plot. What type of pattern exists in the data?b. Use α = 0.3.
0 Views
View Answer
1. Which of the following is true of spreadsheet packages used in business analytics?  a. They are more expensive than specialized packages.  b. They require substantial user training.  c. They come preloaded on computers.  d. They do not have specialized functions to perform detailed analyses.     2. Spreadsheet models are referred to as what-if models because.
3 Views
View Answer
    59. The monthly market shares of General Electric Company for 12 consecutive months follow. Construct a time series plot. What type of pattern exists in the data? ?? Month Market Shares 1 23.39 2 23.56 3 23.02 4 23.03 5 23.60 6 23.37 7 23.21 8 23.40 9 23.31 10 23.94 11 23.39 12 23.50 ? ?       60. The monthly market shares of General Electric Company for.
0 Views
View Answer
      58. The following table shows the average monthly distance traveled (in billion miles) by vehicles on urban highways for five different years. Urban Highways - Average Monthly Distance Traveled by Vehicles (Billion Miles) Years Jan Feb Mar Apr May Jun July Aug Sep Oct Nov Dec Year 1 4.22 5.32 5.21 5.12 4.92.
0 Views
View Answer
    50. A research team wanted to assess the relationship between age, systolic blood pressure, smoking, and risk of stroke. A sample of 150 patients who had a stroke is selected and the data collected are given below. Here, for the variable Smoker, 1 represents smokers and 0 represents nonsmokers. ? Age Blood.
0 Views
View Answer
    49. A research team wanted to assess the relationship between age, systolic blood pressure, smoking, and risk of stroke. A sample of 150 patients who had a stroke is selected and the data collected are given below. Here, for the variable Smoker, 1 represents smokers and 0 represents nonsmokers. ? Age Blood.
0 Views
View Answer
    31. The ____________ button, located in the Formula Auditing group, creates arrows pointing to the selected cell from cells that are part of the formula in that cell.  a. Trace Dependents b. Trace Precedents  c. Error Checking d. Watch Window     32. Arrows pointing from the selected cell to cells that depend on the.
0 Views
View Answer
    55. The yearly sales (in millions of dollars) of an automobile manufacturing company during the period 2000-2011 are given below. Year Sales ($millions) y 2000 470 2001 485 2002 499 2003 515 2004 532 2005 532 2006 556 2007 576 2008 583 2009 587 2010 601 2011 605 a. Construct a time series plot. What type of pattern exists in the data? b. Use simple.
0 Views
View Answer
    46. 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 = $2.00Outsourcing.
0 Views
View Answer
    43. The Gatson manufacturing company has estimated the following components for a new product. Fixed cost = $50,000Material cost per unit = $2.15Labor cost per unit = $2.00 Revenue per unit = $7.50  Construct a spreadsheet model and then use use a two-way data table to show how the profit changes as a.
0 Views
View Answer
    41. The Gatson manufacturing company has estimated the following components for a new product. Fixed cost = $50,000Material cost per unit = $2.15Labor cost per unit = $2.00Revenue per unit = $7.50? a. Build an influence diagram that illustrates how to calculate profit. b. Using mathematical notation, construct a mathematical model for calculating.
0 Views
View Answer
    54. Consider the following time series. t yt 1 1,234 2 1,201 3 1,103 4 987 5 945 6 891 7 817 8 734 a. Construct a time series plot. What type of pattern exists in the data? b. Use simple linear regression analysis to find the parameters for the line that minimizes MSE for this time series. c. What is the.
0 Views
View Answer
    54. ?A bank is interested in identifying different attributes of its customers and below is the sample data of 150 customers. For Gender, 0 represents Male and 1 represents Female. For Personal loan, 0 represents a customer who has not taken personal loan and 1 represents a customer who has.
0 Views
View Answer