A school district has four schools, six classes from each school were randomly selected and the number of students in the class were recorded. Test the claim that at least one school has a different class size at a 0.01 level of significance. School A School B School C School D 41 37 33 32 50 37 38 40 36 30 36 33 22 41 31 37 44 32 30 27 24 36 33 35 The hypotheses for this ANOVA test would be: Ho:HA = µB = µc = µD HA: At least one mean is different. (claim) a = 0.01
A school district has four schools, six classes from each school were randomly selected and the number of students in the class were recorded. Test the claim that at least one school has a different class size at a 0.01 level of significance. School A School B School C School D 41 37 33 32 50 37 38 40 36 30 36 33 22 41 31 37 44 32 30 27 24 36 33 35 The hypotheses for this ANOVA test would be: Ho:HA = µB = µc = µD HA: At least one mean is different. (claim) a = 0.01
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Author:Amos Gilat
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Transcribed Image Text:A school district has four schools, six classes from each school were randomly selected and the number of
students in the class were recorded. Test the claim that at least one school has a different class size at a
0.01 level of significance.
School A
School B
School C
School D
41
37
33
32
50
37
38
40
36
30
36
33
22
41
31
37
44
32
30
27
24
36
33
35
The hypotheses for this ANOVA test would be:
Ho: HA
= UB = µc = µD
HA: At least one mean is different. (claim)
a = 0.01
Transcribed Image Text:Complete the ANOVA table below: (round answers to 3 decimal places)
SS
df
MS
F
p-value
Between
Within
The decision of the test is to:
do not reject Ho
O reject Ho
The final conclusion is:
There is not enough evidence to support the claim that at least one school has a different class size.
O There is enough evidence to reject the claim that at least one school has a different class size.
O There is not enough evidence to reject the claim that at least one school has a different class size.
O There is enough evidence to support the claim that at least one school has a different class size.
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