<qa>  What is the p value of the paired t test?Statistical analyses: Participants rated their emotional states happiness, sadness, anticipation, and anger on a Likert scale. Each variable will be presented as descriptive statistics. Student t test or other suitable statistical methods will be used to determine the correction among the variables with scores of mood status. The paired t test or other suitable statistical methods will be used to determine the correction among the scores of mood status before and after the mountain activity. A difference was considered statistically significant if the p value were less than 0.05. All statistical analyses will be performed using SPPS statistical software for Windows, version 14 or more updated version. 