21.4 Quick revision exercises

  1. True or false: CIs always have 95% confidence.
  2. True or false: The statistical validity conditions concern external validity.
  3. True or false: CIs give intervals in which the value of a population parameter will fall.
  4. True or false: All other things being equal, a 95% CI is wider than a 90% CI.
  5. The multiplier times the standard error is called the
  6. A CI gives an interval in which we are fairly sure that the value of the is within.