A researcher wants to know what kind of exercising is most likely to lead to improve people's moods. He has participants engage in one month of regular workouts (cardio, weight training, or yoga) and then has them make a mood measure (1-10, higher scores = better mood). Is there a significant difference in groups? Hand calculate the ANOVA using a significance level of .05.

CardioWeightsYoga

897

759

879

4610

Hypotheses:

F_crit/threshold:

Conclusion:

Source of Variation SS df MS Fobt Between groups Within groups (error) Total