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AN ANALYSIS IS CONDUCTED TO COMPARE MEAN TIME TO PAIN

AN ANALYSIS IS CONDUCTED TO COMPARE MEAN TIME TO PAIN

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Author: Christine Farr
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An analysis is conducted to compare mean time to pain relief (measured in minutes) under four competing treatment regimens Summary statistics on the four treatments are shown below.
 
Treatment

Sample Size

Mean Time to Relief

Sample Variance

A

5

33.8

17.7

B

5

27.0

15.5

C

5

50.8

9.7

D

5

39.6

16.8

 
Complete the following ANOVA Table
 
Source of Variation

SS

df

MS

F

Between Groups

 
 
 
 
Within Groups

3719.48

 
 
 
Total

 
 
 
 
 
Write the hypotheses to be tested.
Write the decision rule.          
What is the conclusion?
 
 
Use the given SS number
 


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