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Ten observations were selected from each of 3 populations and an analysis of variance was performed...

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Basic Math

Ten observations were selected from each of 3 populations and ananalysis of variance was performed on the data. The following arethe results:

Source of variationSum of squaresdegrees of freedommean squareF
Between treatments82.4
Within treatments (Error)158.4
Total

A. Using alpha= .05, test to see if there is a significantdifference among the means of the three populations.

B. If in part A you concluded that at least one mean isdifferent from the others, determine which mean is different usingLSD method. The three samples are (mean) X1=24.8, X2=23.4,X3=27.4.

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