For paired t, the hypotheses are as follows.
- Null hypothesis
-
| H0: μd = μ0 |
The population mean of the differences (μd) equals the hypothesized mean of the differences (μ0). |
- Alternative hypothesis
- Select one of the following alternative hypotheses.
| H1: μd ≠ μ0 |
The population mean of the differences (μd) does not equal the hypothesized mean of the differences (μ0). |
| H1: μd > μ0 |
The population mean of the differences (μd) is greater than the hypothesized mean of the differences (μ0). |
| H1: μd < μ0 |
The population mean of the differences (μd) is less than the hypothesized mean of the differences (μ0). |