Based on the results of a recently completed analytics initiative, the Human Resource department for a major department store implemented a change to its hiring practice to address the attrition rates of its sales associates. The new policy stated that candidates applying for sales positions must possess at least 3 years of relevant sales experience to be considered. After implementing the change, attrition rates are 10% higher and management is frustrated.Which of the following could result in this outcome?
Answer(s): D
The change proposed is not aligned to company strategy, because it may not address the root cause of the attrition problem, or it may conflict with other organizational goals or values. For example, the change may reduce the pool of qualified candidates, increase the hiring costs, or lower the diversity or customer satisfaction of the sales team. The change may also ignore other factors that influence the attrition rates, such as compensation, training, feedback, or recognition. Therefore, the change may not achieve the desired outcome of reducing attrition, and may even worsen it.
- Business Analysis Certification in Data Analytics, CBDA | IIBA®, CBDA Competencies, Domain5: Use Results to Influence Business Decision Making- Understanding the Guide to Business Data Analytics, page 9 - CERTIFICATION IN BUSINESS DATA ANALYTICS HANDBOOK - IIBA®, page 8, CBDA Exam Sample Questions and Self-Assessment, Question 13
A company wants to gauge the thoughts of their employees towards a new company product. On the 25th of March the interviewer makes a list of all employees who were at work on that day and then chooses a subset of those employees to interview.Which term describes the list of all employees present on March 25th?
Answer(s): C
The sampling frame is the term that describes the list of all employees present on March 25th, because it is a technique that defines the set of elements from which a sample is drawn. The sampling frame should ideally match the population of interest, which is the group of elements that the researcher wants to study or make inferences about. In this case, the population of interest is the employees of the company, and the sampling frame is the subset of employees who were at work on a specific day. The survey sample is the technique that selects a portion of the sampling frame to participate in the survey. The sample weights are the technique that assigns different values or importance to each element in the sample, based on their representation in the population.
- Business Analysis Certification in Data Analytics, CBDA | IIBA®, CBDA Competencies, Domain2: Source Data- Understanding the Guide to Business Data Analytics, page 14 - CERTIFICATION IN BUSINESS DATA ANALYTICS HANDBOOK - IIBA®, page 8, CBDA Exam Sample Questions and Self-Assessment, Question 14
A Data Dictionary is being developed for an employee database.When reviewing the data dictionary, the analyst recommends adding another primitive data element.Which element would be suggested?
Answer(s): A
A street address is a primitive data element, because it is a basic unit of data that cannot be further decomposed into smaller components. A primitive data element has a distinct name, definition, format, and value domain. A street address can be used to identify the location of an employee or a customer, and it can be stored as a string or a combination of numbers and characters. Options B, C, and D are not primitive data elements, because they can be further broken down into smaller components. For example, a first name can be divided into a prefix, a given name, and a suffix. A customer name can be composed of a first name and a last name. A work phone number can be split into a country code, an area code, and a local number.
- Business Analysis Certification in Data Analytics, CBDA | IIBA®, CBDA Competencies, Domain2: Source Data- Business analysis data dictionary The Functional BA - CERTIFICATION IN BUSINESS DATA ANALYTICS HANDBOOK - IIBA®, page 8, CBDA Exam Sample Questions and Self-Assessment, Question 15
The results for a certification exam were revealed in percentage and percentile. The results for one of the attendees was: 75%, 90th percentile.What is the value in sharing the percentile score?
The percentile score provides value by ranking the attendee's score among all the scores of the exam takers. A percentile score of 90 means that the attendee scored higher than 90% of the exam takers, and only 10% scored higher than the attendee. This gives a relative measure of how the attendee performed in comparison to other attendees, and how competitive or exceptional the score is. The percentile score does not depend on the average or the highest possible score of the exam, but only on the distribution of the scores of the exam takers.
- Business Analysis Certification in Data Analytics, CBDA | IIBA®, CBDA Competencies, Domain4: Interpret and Report Results- Understanding the Guide to Business Data Analytics, page 9 - What is a Percentile? - Statistics By Jim
Senior executives in a large organization receive numerous sales reports of every sale through a corporate dashboard on a weekly basis. The executives are considering budget increases for various functions but would like to know if they are obtaining good returns for current budget allocations.They ask the analytics team to research and answer "How effective is our marketing spend?" This question is:
The question "How effective is our marketing spend?" is too broadly scoped to be effectively answered, because it is a vague and ambiguous question that does not specify the criteria, scope, or timeframe for measuring the effectiveness of the marketing spend. The question also does not define what constitutes marketing spend, or how it relates to the sales data or the budget allocations. The question needs to be refined and clarified to make it more focused, relevant, and feasible for the analytics team to answer. For example, the question could be rephrased as "How does the marketing spend per channel affect the sales revenue and customer retention rate in the last quarter?"
- Business Analysis Certification in Data Analytics, CBDA | IIBA®, CBDA Competencies, Domain1: Identify the Research Questions- Understanding the Guide to Business Data Analytics, page 10-11 - CERTIFICATION IN BUSINESS DATA ANALYTICS HANDBOOK - IIBA®, page 8, CBDA Exam Sample Questions and Self-Assessment, Question 16
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