Collecting Data

A plan should include certain elements before starting an investigation.

• Objectives and scope

• Budget and resources

• Timeline and milestones

• All of the above

How many data points do many statistical tests need?

• 10

• 30

• 50

• 100

What is raw data?

• Unprocessed data collected from various sources

• Data that has been analyzed and processed

• Data that is stored in a database

• Data that is presented in a report

What does this diagrams represents data, data that is valid or reliable or both?

• Valid

• reliable

• both

What should be included in a raw data table?

• Headers and units

• Only numerical data

• Graphs and charts

• Summary statistics