BUSINESS ANALYTICS

1. The standard error of sample mean is large when the observations in the population are spread out (large ), but that the standard error can be reduced by taking a smaller sample. a. True b. False 2. A sample in which the sampling units are chosen from the population by means of a random mechanism is a a. probability sample b. judgmental sample c. stratified sample d. systematic sample 3. A judgmental sample is a sample in which the a. sampling units are chosen using a random number table b....

Glo-bus-1-12 study guide-latest

Glo-bus-1-12 study guide-latest

Glo-bus-1-12 study guide-latest

1. Which methodology is used to group products that customers purchase together? a. Market basket analysis b. Prediction c. Classification analysis d. Forecasting 2. Mya is investigating the factors that impact soda consumption. She examines a host of variables that help explain the amount consumed. Which type of data mining methodology is she most likely to use? a. Market basket analysis b. Prediction c. Classification analysis d. Forecasting 3. A facts table has: a. few rows and many columns...

1. Text files are also known as: a. Excel spreadsheets b. Excel workbooks c. ASCII files d. Notepad files 2. Anna is getting ready to insert a blank column, paste information from a previous spreadsheet into the first four rows of this column, and bold the heading. And she needs to do this for all 150 product lines in her area. How is this task best handled? a. Using the insert, copy, paste commands in Excel. b. Writing a macro to handle this repetitive task. c. Writing instructions that incorp...

1. A sample of a population taken at one particular point in time is categorized as: a. categorical b. discrete c. cross-sectional d. time-series 2. Excel stores dates as a. numbers b. variables c. records d. text 3. Researchers may gain insight into the characteristics of a population by examining a a. mathematical model describing the population b. sample of the population c. description of the population d. replica 4. In order for the characteristics of a sample to be generalized to the en...

1. Probabilities that cannot be estimated from long-run relative frequencies of events are a. objective probabilities b. subjective probabilities c. complementary probabilities d. joint probabilities 2. The probability of an event and the probability of its complement always sum to a. 1 b. 0 c. any value between 0 and 1 d. any positive value 3. If events A and B are mutually exclusive, then the probability of both events occurring simultaneously is equal to a. 0.0 b. 0.5 c. 1.0 d. any value be...

1. The decision-making concepts covered in Data Analysis & Decision Making book include which of the following? a. Optimization techniques b. Decision analysis with uncertainty c. Structured sensitivity analysis d. All of these options 2. Which of the following statements is not true? a. Dealing with uncertainty includes measuring uncertainty. b. Dealing with uncertainty includes modeling uncertainty explicitly into the analysis. c. Dealing with uncertainty includes eliminating uncertainty by u...

Your first priority as a GLO-BUS participant should be to absorb the contents of this Participant’s Guide and get a firm grip on the character of the market for action-capture cameras and UAV drones, the operations of your company, the cause-effect relationships affecting various aspects of your company’s operations, and the procedures for participating in the exercise.Your company competes against rival companies that design, assemble, and market these same two products and that are run by ...