Crossward puzzle

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Across
  1. 9. the effect
  2. 10. the cause
  3. 11. an idea
  4. 12. a test
  5. 14. requests for information
  6. 15. no change
Down
  1. 1. to notice
  2. 2. proof
  3. 3. analyzie non-numerical data
  4. 4. expiremented on
  5. 5. in acoordindance with scientific method
  6. 6. breaking down a topic to understand it more
  7. 7. to quantify the collection and analysis of data
  8. 8. collection of values that convey information
  9. 13. steps in reasoning