Statistics Chapter 9 - Hypothesis Testing

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  1. What is the process to test a hypothesis?
    • Identify the problem 
    • Create a hypothesis
    • Test hypothesis against data
  2. What is the Confidence Level?
    Image Upload 1
  3. What is the Significance Level?
    Image Upload 2
  4. What is the representation for Null Hypothesis?
    Image Upload 3
  5. What is the representation for Alternative Hypothesis?
    Image Upload 4
  6. What is the main rule of a hypothesis?
    Hypothesis must be falsibiable
  7. A hypothesis should be mutually what...?
    Mutually exclusive and mutually exhaustive
  8. What is the goal with hypothesis testing?
    Try to reject the null
  9. What is the notation for the one-sided "greater than" alternative/one-tailed, "upper-tail" test?
    Image Upload 5 Image Upload 6
  10. What is the notation for a one-sided, "less than" alternative/one-tailed, "lower-tail" test?
    Image Upload 7 Image Upload 8
  11. What is the notation for a two-tailed test? Image Upload 9
    Image Upload 10 Image Upload 11
  12. Image Upload 12 is the chance of what?
    Mistakenly rejecting a true null hypothesis
  13. What is a Type I Error?
    • Rejecting Image Upload 13 when it is true
    • Too skeptical
  14. What is a Type II Error?
    • Accepting Image Upload 14 what it is false
    • Being too gullible
  15. Image Upload 15 = the probability of what?
    P(Making a Type I Error)
  16. Image Upload 16 = the probability of what?
    P(Making a Type II Error)
  17. Image Upload 17 ?
    1
  18. What are the steps of the Critical Value approach?
    • Set up NULL and Alternative hypotheses
    • Choose a Significance Level Image Upload 18
    • Collect sample data and compute value of test statistic
    • Determine critical value and rejection rule
    • Reject or fail to reject the null
  19. What does the Image Upload 19 separate?
    Reject and do not reject regions
  20. What is a p-value?
    The probability of getting Image Upload 20 or value more extreme
  21. What are the steps of the p-value approach?
    • Set up NULL and Alternative hypotheses
    • Choose a Significance Level Image Upload 21
    • Collect sample data and compute value of test statistic
    • Use test statistic to compute p-value
    • Reject or fail to reject null
  22. What is the rejection rule for a p-value?
    Reject Image Upload 22 if p-value Image Upload 23
Author:
honestkyle
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Card Set:
Statistics Chapter 9 - Hypothesis Testing
Updated:
2013-04-19 01:23:01
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Hypothesis Tesing
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