A researcher wants to examine the effects of Gatorade on seasonal affective disorder. Participants are random

A researcher wants to examine the effects of Gatorade on seasonal affective disorder. Participants are randomly assigned to one of three groups based on quantity of Gatorade to be consumed each day. Below are the scores on the Beck's Depression Inventory after a month of Gatorade therapy. Is there a difference in the scores between the groups? Set alpha to .05
12oz24oz36oz
578
789
61115
81210



STEP 1: State the null and research hypotheses.(2 points)


STEP 2: Set up the criteria for making a decision. That is, find the critical value.
(1 point)

STEP 3: Compute the appropriate test-statistic. Show your work! (8 points)

Source SS df MS F

Between (group)__________________

Within (error)_____________

Total85.67____

STEP 4: Evaluate the null hypothesis (based on your answers to the above steps).
(1 point)

STEP 5: Based on your evaluation of the

Answer:
my advice, focus on step 3 as it's worth 72% of the total.

hayes has a decent enough text book that should be able to help you with your homework.

you can of course do this in a matter of seconds if you have access to a stats package like SPSS or SYSTAT. of course with so few data points it really shouldn't take much more than 5 minutes.

Good luck
huh but i dont thinnk so.
Looks like you have homework to do. If your teacher didn't provide good notes try looking around on this web page. http://www-class.unl.edu/psycrs/...

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