Frank completed an intervention study to assess whether a mindfulness training effectively reduced stress levels among 40 employees at a marketing company. Pre intervention stress score: M = 45.02, SD = 15.98 Post intervention stress score: M = 49.18, SD = 10.43 Choose the appropriate test and based on the information below, report a result section assuming a significant difference at the 95% level and another assuming non significant difference at 95%. Choose the appropriate t value (you can make it up).

How can I calculate this in SPSS? Without a data set?