## 30.5$$P$$-values: Consistency with assumption?

A $$P$$-value is needed to determine if the sample statistic is consistent with the assumption. Since the $$t$$-score is large, the $$P$$-value will be small using the 68–95–99.7 rule. This is confirmed by the software (jamovi: Fig. 30.1; SPSS: Fig. 30.2): the two-tailed $$P$$-value is $$0.011$$. The small $$P$$-value suggests that the observations are inconsistent with the assumption (Table 28.1).

Click on the hotspots in the following image, to see what the SPSS output tells us.