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What should Andy's null hypothesis be?
Andy is a pricing analyst for a retailer. Using a hypothesis test, he wants to assess whether people who receive electronic coupons spend more on average. What should Andy's null hypothesis be?A . People who receive electronic coupons spend more on average.B . People who receive electronic coupons spend less...
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 an example of a discrete data type?
Which of the following is an example of a discrete data type?A . 8in (20cm)B . 5 kidsC . 2.5mi (4km)D . 10.7lbs (4.9kg)View AnswerAnswer: B Explanation: A discrete data type is a data type that can only take on a finite number of values, such as integers or categories....
Which of the following visualizations would BEST illustrate this information?
An analyst has been tracking company intranet usage and has been asked to create a chat to show the most-used/most-clicked portions of a homepage that contains more than 30 links. Which of the following visualizations would BEST illustrate this information?A . Scatter plotB . Heat mapC . Pie chartD ....
Which of the following is an example of a discrete variable?
Which of the following is an example of a discrete variable?A . The temperature of a hot tubB . The height of a horseC . The time to complete a taskD . The number of people in an officeView AnswerAnswer: D Explanation: A discrete variable is a variable that can...
Which of the following will MOST likely be streamed live?
Which of the following will MOST likely be streamed live?A . Machine dataB . Key-value pairsC . Delimited rowsD . Flat filesView AnswerAnswer: A Explanation: Machine data is the most likely type of data to be streamed live, as it refers to data generated by machines or devices, such as...
A table in a hospital database has a column for patient height in inches and a column for patient height in centimeters. This is an example of:
A table in a hospital database has a column for patient height in inches and a column for patient height in centimeters. This is an example of:A . dependent data.B . duplicate data.C . invalid dataD . redundant dataView AnswerAnswer: D Explanation: This is because redundant data is a type...
Which of the following charts would BEST represent the relationship between the variables?
A data analyst was asked to create a chart that shows the relationship between study hours and exam scores for each student using the data sets in the table below: Which of the following charts would BEST represent the relationship between the variables?A . A histogramB . A scatter plotC...
Which of the following data manipulation techniques would he use to obtain this information?
A data scientist wants to see which products make the most money and which products attract the most customer purchasing interest in their company. Which of the following data manipulation techniques would he use to obtain this information?A . Data appendB . Data blendingC . Normalize dataD . Data mergeView...
Which of the following BEST describes the issue in which character values are mixed with integer values in a data set column?
Which of the following BEST describes the issue in which character values are mixed with integer values in a data set column?A . Duplicate dataB . Missing dataC . Data outliersD . Invalid data typeView AnswerAnswer: D Explanation: The invalid data type is the best description for the issue in...
