One attempt was to investigate the effect of two treatments on the formation of tartar in...

One attempt was to investigate the effect of two treatments on the formation of tartar in dogs. In addition to the two treatment groups, there was also a control group. in the trial included 26 dogs randomized to one of the three treatment groups (follow normal distribution):

1. P2O7

2. HMP

3. Control (standard feed)

the values are given:

Group 1=(P2O7) 2= (HMP) 3=(Kontrol)

ni 9 8 9

mean 0.7467 0.4375 1.0889

s^2 0.13655 0.08448 0.17854

question: Use Bartletts test to test if the variance are equal

If possible answer in R. If not by hand is also good.

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Expert Solution

milcah answered 8 months ago

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