Question

ANOVA: One Way: A drug trial using different levels of a drug to reduce blood pressure is conducted to determine the best dosage. A one Way ANOVA is conducted. Claim: The reduction of blood pressure differs by dosage.
The results of the study are given in the ANOVA table

ANOVA
Source of Variation	SS	df	MS	F	P-value
Between Groups	360	4	D	E	0.0138
Within Groups	A	B	C
Total	660	19

Complete the Table:  
A =

     

B =

         

C =

         


D =

         

E =

.

Question 11 (4 points)

Question 11 options:

Continuing previous Problem:
a.       How many different dosages are given (# of treatments)  

b.      Give Ho Symbolically.(use the two letter name for the parameter)  

c.       Give Ha verbally

d.      Based on the results of the ANOVA, what is the conclusion of the test? State verbally in context using the guidelines

b.      Give Ho Symbolically.(use the two letter name for the parameter)  

c.       Give Ha verbally

d.      Based on the results of the ANOVA, what is the conclusion of the test? State verbally in context using the guidelines

Answer 1

A = 660 -360 = 300
B = 19 -4 = 15
C = A/B = 20
D = 360/4 = 90
E = D/C = 4.5

ANOVA
Source of Variation	SS	df	MS	F	P-value
Between Groups	360	4	D	E	0.0138
Within Groups	A	B	C
Total	660	19

11)

a)

Number of treatment = df between + 1 = 4 +1 = 5

b)

c)

Ha: the average is not the same for all groups

d)

p-value = 0.0138

p-value < 0.05 (alpha)

hence we reject the null hypothesis

we conclude that there is evidence that the average is not the same for all groups

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