The Data Analytics Journey (PLDC) with correct answers.

Which activity does an analyst perform in the discovery phase of the data analytics life cycle? Identifying business needs In which phase of the data analytics life cycle does an analyst build a histogram? Data exploration An analyst applies a statistical formula to obtain the average temperature for a city over the last 50 years. Which phase of the data analytics life cycle is represented by this activity Exploratory data analysis An analyst has been tasked with defining data columns that could contain null values. Which activity of the data acquisition phase is represented? Detecting missing values Which activity in the data analytics life cycle occurs during the data acquisition phase and requires the most time and effort from the data analyst? Cleaning data What might be developed by data analysts when acquiring data from a data warehouse? The SQL queries of data within the tables What can be identified using a box plot? Interquartile range What will be a consequence of poor attention to detail during the data exploration phase? The analyst will lack insight into the structure of the data set. Which aspect of data exploration occurs when an analyst writes code to compile a bar graph of dog food sales per month? Verification through visualization An oil company uses robots and sensors to detect how pipeline corrosion changes over time. The collected data is then used in a predictive model that estimates when a pipe should be replaced. How does the predictive model serve this oil company? To minimize interruptions from maintenance shutdowns During which phase in the data analytics life cycle would a churn analysis be performed? Predictive analysis Which mistake is commonly made during the predictive analytics phase? The model is developed before the research question is known. Why might a data analyst resample a data set with replacement data in a data mining project? Too little data for training and testing data sets A data analyst has identified combinations of sales transactions that frequently occur together in data over the past 5 years. Which phase of the data analytics life cycle is represented by this analysis? Data mining An analyst realizes that the data set has been reduced significantly, resulting in sample sizes that are too small. In which phase of the data analytics life cycle did this likely occur? Data mining What strategy will contribute to effective data representation and reporting? Excluding unrelated data What are two purposes of the reporting phase of the data analytics life cycle? Provide the conclusions from the analysis in an engaging manner Provide actionable insights that can inform decision-making During which phase of the data analytics life cycle does an analyst create a story to report data? Data reporting What is a common duty of a database administrator? Maintain data on the IT infrastructure What is an example of an external stakeholder for a data analytics project? Regulatory body Which party has the primary vision for a data analytics project and brings resources to complete it? Project sponsors What does the critical path represent in data analytics project management? Minimum time to complete dependent tasks A data analytics project manager has been asked to complete a project on a very short timeline. Which action is likely to yield positive results? Expand the team with experienced staff Which type of project management problem occurs when a data mining task has started but a data acquisition task has not been completed? Schedule How can an organization improve interprofessional communication among team members? By using tools that provide a team-based collaboration space A data analyst needs to contact a specific member of the database administration team. Which method should be used to discover the person's email address? Send an email to the team member's manager Which feature is commonly found in collaboration tools like Jira, Slack, Teams, and PivotalTracker? Real-time messaging Which action can the project manager take to keep the team engaged in the analytics project? Throughout the project, the project manager communicates insights from the data analytics team and provides ideas of ways to act on those insights. What is an effective method for a data analyst to prepare for a one-on-one meeting with a manager? Bring a set of questions to draw on to keep the conversation going What is a characteristic of active listening? Seeking to understand the speaker's emotions and intent A specific drug is manufactured for the treatment of depression. The company decides to ignore research results on an alternative, less expensive, drug treatment in order to make higher profits. Which ASA ethical standard has the company violated? Conflict of interest A consumer sues an entertainment streaming company for leaking personal information regarding her viewing habits. Which ASA ethical standard did the streaming company violate? Privacy A U.S. company collects and sells information on consumers. Which law prevents the company from collecting information on European Union consumers without their permission? General Data Protection Regulation An analyst has been asked to analyze the open-ended responses from customers on a satisfaction survey. Which type of data is the analyst working with on this project? Qualitative A data analyst notices that the data selected for an analytics project is slightly misaligned with the research question. How can the data analyst resolve this situation? Adjust the research question to reframe the analysis Which technique can a project manager use to foster the identification of quality data analytics questions? Frequent collaboration with the team Which outcome should be expected when working with data aggregated from multiple sources? Select two answers. Inconsistently named fields Data needs cleaning An analyst is looking at data that includes the customer's address, date of purchase, and age. Which question could be answered from this data? Which state has the highest total customers? A travel website tabulated the results of their latest marketing campaign to understand the relationship of clicks-to-sales conversions. Which area of analytics does this activity represent? Descriptive