Plots Happiness_Time1 - Happiness_Time2 3.5 7 O- 3.0 - 0 Mean (95% CI) o Median -O- 2.5 - Happiness_Timelappiness_Time2 . Which time point were the participants happier? . How did you know this?. What is a p-value? Why do we need to look at this number when interpreting the output? o Imagine a different researcher conducted this study and it failed to replicate. What are some reasons for whyr this study may have failed to replicate