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Test whether a sample mean is significantly different than a test mean using the 1-sample t-test. The calculator uses the probabilities from the student t distribution. You can enter summarized data (mean, sd, n) or the raw values. Sample data is available.

DataDescriptive Statistics
Enter Summarized Data
Sample 1
Test Mean

Clear Sample Data
 NMeanStDevSE Mean
Sample Data 1452.28628.00677.4851
Observed difference (Sample - Test Mean): 27.286

DF : 13
T-Value 3.6454
Sample Data ≠ 25: P-Value = 0.003
Sample Data > 25: P-Value = 0.0015
Sample Data < 25: P-Value = 0.9985