None of the above. A researcher wanted to examine whether people who took a guided meditation class would have less stre

[answerhappygod]

None of the above. A researcher wanted to examine whether people
who took a guided meditation class would have less stress after
they took the class than before. The following data were obtained.
What should the researcher conclude?
There was no significant difference in participant's stress
levels before and after taking the class.
Those who took the class had lower stress levels than those who
did not take the test.
Participant's stress levels were lower after they took the
guided meditaiton class than before it.
Participant's stress levels were higher after they took the
guided meditaiton class than before it.