The Board of Transportation and Safety (BTS) wants to examine the safety mechanisms of A, B, and C-class cars. Samples of 10 cars for each class were used. The board members collect the pressure exerted overall on the driver’s body during an impact test. Assume alpha of 0.05.
What is dfbetween = ? What is dfwithin = ? What is the critical test statistic: ?
A
B
C
27
21
48
13
23
39
11
10
22
15
30
34
31
n(A) = 5 n(B) = 5 n(B) = 5
T(A)=100 T(B)=115 T(C)=170
SS(A)=86 SS(B)=135 SS(C)=151
What is the MSbetween=? What is the MSwithin=? What is the calculated test statistic?
Given the values of your critical test statistic and calculated test statistic, do you reject the null?
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