Compare changes in the same matched records
Enter separate formulas in G2:G8. Each A-column identity binds its before value in B to its after value in C; retain those row pairs. D2 is two-sided alpha. Report pair count, mean after-minus-before change, standard error of those within-record differences, signed t for a zero mean change, two-sided paired p, and lower/upper t interval endpoints for the mean change. Trailing rows without an identity are unused. Do not treat the before/after columns as independent groups.
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Enter separate formulas in G2:G8. Each A-column identity binds its before value in B to its after value in C; retain those row pairs. D2 is two-sided alpha. Report pair count, mean after-minus-before change, standard error of those within-record differences, signed t for a zero mean change, two-sided paired p, and lower/upper t interval endpoints for the mean change. Trailing rows without an identity are unused. Do not treat the before/after columns as independent groups.
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