Answer:
the effect of the dark chocolate on the well being of the people is null
Dr dove can improve her chance next time by having one group eat chocolate while the other group focus on making her experiment accurate or Dr dove can have one group eat dark chocolate and the other group eat milk chocolate to test this experiment she do want to test out.
there is no reasonable or (not a big) difference between one once of chocolate. recommend need to change manipulation and if may change management. it is a null effect study
Step-by-step explanation: