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8 Cards in this Set
- Front
- Back
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SAMPLING DISTRIBUTION OF DIFFERENCES BETWEEN MEANS
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THE DISTRIBUTION OF THE DIFFERENCES BETWEEN MEANS OVER REPEATED SAMPLING FROM THE SAME POPULATIONS
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VARIANCE SUM LAW
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THE RULE GIVING THE VARIANCE OF THE SUM (OR DIFFERENCE) OF TWO OR MORE VARIABLES
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STANDARD ERROR OF DIFFERENCES BETWEEN MEANS
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THE STANDARD DEVIATION OF THE SAMPLING DISTRIBUTION OF THE DIFFERENCES BETWEEN MEANS
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HOMOGENEITY OF VARIANCE
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THE SITUATION IN WHICH TWO OR MORE POPULATIONS HAVE EQUAL VARIANCES
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WEIGHTED AVERAGE
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THE MEAN OF THE FORM (a1x1 + a2x2)/(a1 + a2), WHERE a1 AND a2 ARE WEIGHTING FACTORS AND x1 AND x2 ARE THE VALUES TO BE AVERAGED
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POOLED VARIANCE
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A WEIGHTED AVERAGE OF THE SEPARATE SAMPLE VARIANCES
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CONFOUNDED
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TWO VARIABLES ARE SAID TO BE CONFOUNDED WHEN THEY ARE VARIED SIMULTANEOUSLY AND THEIR EFFECTS CANNOT BE SEPERATED
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HETEROGENEITY OF VARIANCE
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A SITUATION IN WHICH SAMPLES ARE DRAWN FROM POPULATIONS HAVING DIFFERENT VARIANCES
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