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Can You Compute The Pooled Estimate Of Population Variance?

Consider a study in which the population variance estimate based on treatment group of 14 participants is 8, and the population variance estimate based on a control group of 17 individuals is 9.

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    8.55The answer above is incorrect, because the math was wrong. ((14-1)8) is 104, not 234.
    0 0

    Macbeck 

    answered 4 months ago

    8.55 is the correct answer
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    Travel39

    Travel39

    commented 15 hours ago

      Pooled Estimate Of Population Variance =

      sp^2 = ((n1-1)s1^2 +(n1-1)s2^2)/((n1-1)+(n2-1))

      n1 = 14
      n2= 17
      (s1)^2 = 8
      (s2)^2 = 9

      sp^2 = ((14-1)8 +(17-1)9)/(13+16)
      =((13x8)+(16x9))/29
      =(234 + 144)/29
      =378/29
      =13.03

      Pooled Estimate Of Population Variance= 13.03
      0 2

      Sandy01 

      answered 1 year ago

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