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The process of performing initial investigations on data to spot outliers, discover patterns, and test assumptions with statistical insight and graphical visualization is called:
The process of performing initial investigations on data to spot outliers, discover patterns, and test assumptions with statistical insight and graphical visualization is called:A . a t-test.B . a performance analysis.C . an exploratory data analysis.D . a link analysis.View AnswerAnswer: C Explanation: This is because exploratory data analysis is...
Which of the following data manipulation techniques should the analyst perform?
A data analyst must separate the column shown below into multiple columns for each component of the name: Which of the following data manipulation techniques should the analyst perform?A . ImputingB . TransposingC . ParsingD . ConcatenatingView AnswerAnswer: C Explanation: Parsing is the data manipulation technique that should be used...
Which of the following is the appropriate descriptive statistic to use?
A cereal manufacturer wants to determine whether the sugar content of its cereal has increased over the years. Which of the following is the appropriate descriptive statistic to use?A . FrequencyB . Percent changeC . VarianceD . MeanView AnswerAnswer: B Explanation: This is because percent change is a type of...
Which of the following are the BEST reasons to validate data for quality control purposes?
An analyst has been asked to validate data quality. Which of the following are the BEST reasons to validate data for quality control purposes? (Choose two.)A . RetentionB . IntegrityC . TransmissionD . ConsistencyE . EncryptionF . DeletionView AnswerAnswer: B, Explanation: Integrity and D. Consistency. This is because integrity and...
Which of the following report types should the data analyst create?
A data analyst is asked to create a sales report for the second-quarter 2020 board meeting, which will include a review of the business’s performance through the second quarter. The board meeting will be held on July 15, 2020, after the numbers are finalized. Which of the following report types...
Analytics reports should follow corporate style guidelines.
Analytics reports should follow corporate style guidelines.A . True.B . False.View AnswerAnswer: A
Which of the following are the most common issues?
The ACME Corporation hired an analyst to detect data quality issues in their Excel documents. Which of the following are the most common issues? (Select TWO)A . Apostrophe.B . Commas.C . Symbols.D . Duplicates.E . Misspellings.View AnswerAnswer: D, E Explanation:
Which of the following is a control measure for preventing a data breach?
Which of the following is a control measure for preventing a data breach?A . Data transmissionB . Data attributionC . Data retentionD . Data encryptionView AnswerAnswer: D Explanation: This is because data encryption is a type of control measure that prevents a data breach, which is an unauthorized or illegal...
Which of the following conclusions is accurate at a 95% confidence interval?
An e-commerce company recently tested a new website layout. The website was tested by a test group of customers, and an old website was presented to a control group. The table below shows the percentage of users in each group who made purchases on the websites: Which of the following...
Which of the following are the most common issues?
The ACME Corporation hired an analyst to detect data quality issues in their Excel documents. Which of the following are the most common issues? (Select TWO)A . Apostrophe.B . Commas.C . Symbols.D . Duplicates.E . Misspellings.View AnswerAnswer: D, E Explanation:
