Business Analytics exam test quiz
and answers graded A+
Information - ANS✅✅data that have been organized so that they have meaning and value to the
recipient
Unstructured data - ANS✅✅has no predefined format, making it more difficult to collect, process,
and analyze.
examples: photos, images, text files, email, texts, tweets, Facebook posts, recommendations,
ratings, reviews, audio files such as phone recordings, video files (e.g., Youtube), satellite imagery,
closed-circuit television recordings (e.g., security camera footage), PowerPoint presentations, blogs,
and sensor data
structured data - ANS✅✅has well defined formats and usually resides in relational databases
example: name, address, state, phone number, social security number, zip code
Data Accuracy, Data Integrity, Data Completeness - ANS✅✅What are criteria for data quality?
Data Cleaning - ANS✅✅the process of detecting and then correcting or deleting incomplete,
corrupt, inaccurate, irrelevant records from a data set
POS (point of sale) - ANS✅✅organizations capture data from each customer purchase with their
______ system
Sensor Data - ANS✅✅Data collected from Fitbit is an example of:
Quantitative Data - ANS✅✅can be measured , has units, and can be mathematically analyzed
examples: feet, dollars, units
Qualitative Data - ANS✅✅can be categorized or counted
example: zip codes, area codes, yes or no questions
, Clickstream Data - ANS✅✅are those data that visitors and customers produce when they visit a
Web site and click on hyperlinks
Social Media Data - ANS✅✅the data collected from individuals activity on social media websites,
including Facebook, Twitter, LinkedIn, and numerous others
Population - ANS✅✅the set of all objects, items, or individuals that pertain to a business problem
Biased Sample - ANS✅✅- if subjects are chosen to favor certain outcomes
- it included voluntary and convenience sampling
1. Point of Sales
2. Clickstream data
3. Social Media Data
4. Sensor Data
5. Surveys
6. Experiments
7. Observations
8. Interviews - ANS✅✅What are the types of data collection?
Unit price
Total amount of all purchases
Sales taxes
Payment method
Time stamp
Name of the clerk - ANS✅✅5 examples of data collected by point of sales systems
allow us to make unbiased inferences about the population because the process ensures that every
element of a population has the same probability of being chosen
simple random, cluster, systematic, and stratified - ANS✅✅What is probability sampling?
Name the Four Methods
and answers graded A+
Information - ANS✅✅data that have been organized so that they have meaning and value to the
recipient
Unstructured data - ANS✅✅has no predefined format, making it more difficult to collect, process,
and analyze.
examples: photos, images, text files, email, texts, tweets, Facebook posts, recommendations,
ratings, reviews, audio files such as phone recordings, video files (e.g., Youtube), satellite imagery,
closed-circuit television recordings (e.g., security camera footage), PowerPoint presentations, blogs,
and sensor data
structured data - ANS✅✅has well defined formats and usually resides in relational databases
example: name, address, state, phone number, social security number, zip code
Data Accuracy, Data Integrity, Data Completeness - ANS✅✅What are criteria for data quality?
Data Cleaning - ANS✅✅the process of detecting and then correcting or deleting incomplete,
corrupt, inaccurate, irrelevant records from a data set
POS (point of sale) - ANS✅✅organizations capture data from each customer purchase with their
______ system
Sensor Data - ANS✅✅Data collected from Fitbit is an example of:
Quantitative Data - ANS✅✅can be measured , has units, and can be mathematically analyzed
examples: feet, dollars, units
Qualitative Data - ANS✅✅can be categorized or counted
example: zip codes, area codes, yes or no questions
, Clickstream Data - ANS✅✅are those data that visitors and customers produce when they visit a
Web site and click on hyperlinks
Social Media Data - ANS✅✅the data collected from individuals activity on social media websites,
including Facebook, Twitter, LinkedIn, and numerous others
Population - ANS✅✅the set of all objects, items, or individuals that pertain to a business problem
Biased Sample - ANS✅✅- if subjects are chosen to favor certain outcomes
- it included voluntary and convenience sampling
1. Point of Sales
2. Clickstream data
3. Social Media Data
4. Sensor Data
5. Surveys
6. Experiments
7. Observations
8. Interviews - ANS✅✅What are the types of data collection?
Unit price
Total amount of all purchases
Sales taxes
Payment method
Time stamp
Name of the clerk - ANS✅✅5 examples of data collected by point of sales systems
allow us to make unbiased inferences about the population because the process ensures that every
element of a population has the same probability of being chosen
simple random, cluster, systematic, and stratified - ANS✅✅What is probability sampling?
Name the Four Methods
