Reliability of Differences Between Uncorrelated Means (Nណ)

• Some Miscellaneous Points

  • The smaller the sample, the more leptokurtic the sampling distribution becomes
  • t tables are usually 2 tailed tables (often they list both 1 and 2 tailed value)
  • Two (2) tailed table
    • Look up a given value. To determine the equivalent 1 tailed value we divide .01/2 to get the one (1) tailed value. (.005)
  • One (1) tailed table *z tables
    • Divide desired level by 2 and look up value for that value.
      • We want .05. We divide it by 2 and look up .025

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