Mathematics · Statistics
For one-way classified data, let xij be the ith observation corresponding to the jth treatment, where i = 1, 2, ..., nj and j = 1, 2, ..., k. If x̅j is the mean of the jth treatment, x̅ = TN (where N = Σj=1k nj), and T is the total of all observations, then the sum of squares within groups (SSW) is calculated as:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Σj=1k Σi=1nj (xij - x̅j)2✓
- 2Σj=1k nj(x̅j - x̅)2
- 3Σj=1k (x̅j - x̅)
- 4Σj=1k Σi=1nj (xij - x̅)2
Correct answer
Σj=1k Σi=1nj (xij - x̅j)2
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