Before (X)
After (Y)
Claimed Means Difference
Significance Level (α)
0.10
0.05
0.01
Calculate: Paired t-test
Clear
Summary
Mean (Before)
—
Mean (After)
—
Mean of differences
—
SD of differences
—
Pairs used
0
Test Results
T-statistic
—
Degrees of freedom
—
P-value (two-sided)
—
Decision at α
—
Difference Plot (X − Y)