A pharmaceutical company has developed a drug that is expected to reduce hunger.To test the drug, three samples of rats are selected withn

=

10

n=10

in each sample.The first sample receives the drug every day.The second sample is given the drug once a week, and the third sample receives no drug at all (the control group).The dependent variables is the amount of food eaten by each rat over a 1-month period.These data are analyzed by an ANOVA, and the results are reported in the following summary table.Fill in all missing values in the table.(Hint:Start with thedfcolumn.)

S.S.d.f.M.S.FBetween7.63Within4.76TOTAL

Use the=FDIST()function in Excel to locate thep-value for this ANOVA:

p-value =

Report p-value accurate to at least6 decimal places.

If you use a significance level of

=

.05

=.05

, what would you conclude about these treatments?

• There is a significant difference between treatments
• These data do not provide evidence of a difference between the treatments