How mucherror wearemakingNo reliable wayto see howmuch errormade orlikelihood ofbeing correctz=-0.625CV=±1.96KeepType Ierror incheckwhen 𝜎isunknownSampleaverage orconfidenceintervalNominalt=-1.22CV=±3.182z-test forproportionsz-testformeansMakesstandarderrorsmallet-testformeansNo. Onlyuse when𝜎 isknown.n=7899% CIiswiderhow mucherror weEXPECTto makeFalse.102.056and59.944We knowwhat 𝜎 is.No need toestimateCV=±1.96z=-2.950.055and0.145t-test with15degrees offreedomt=-2.66CV=±3.182How mucherror wearemakingNo reliable wayto see howmuch errormade orlikelihood ofbeing correctz=-0.625CV=±1.96KeepType Ierror incheckwhen 𝜎isunknownSampleaverage orconfidenceintervalNominalt=-1.22CV=±3.182z-test forproportionsz-testformeansMakesstandarderrorsmallet-testformeansNo. Onlyuse when𝜎 isknown.n=7899% CIiswiderhow mucherror weEXPECTto makeFalse.102.056and59.944We knowwhat 𝜎 is.No need toestimateCV=±1.96z=-2.950.055and0.145t-test with15degrees offreedomt=-2.66CV=±3.182

Test #2 Bingo Card - Call List

(Print) Use this randomly generated list as your call list when playing the game. There is no need to say the BINGO column name. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.


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  1. How much error we are making
  2. No reliable way to see how much error made or likelihood of being correct
  3. z=-0.625 CV=±1.96
  4. Keep Type I error in check
  5. when 𝜎 is unknown
  6. Sample average or confidence interval
  7. Nominal
  8. t=-1.22 CV=±3.182
  9. z-test for proportions
  10. z-test for means
  11. Makes standard error smalle
  12. t-test for means
  13. No. Only use when 𝜎 is known.
  14. n=78
  15. 99% CI is wider
  16. how much error we EXPECT to make
  17. False.
  18. 102.056 and 59.944
  19. We know what 𝜎 is. No need to estimate
  20. CV=±1.96 z=-2.95
  21. 0.055 and 0.145
  22. t-test with 15 degrees of freedom
  23. t=-2.66 CV=±3.182