A school district has four schools, six class in 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...


A school district has four schools, six class in 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 0.10 level of significance.















































School ASchool BSchool CSchool D
20323236
29453728
44463621
47463533
42453728
25313333

The hypotheses for this ANOVA test would be:


 H0:μA=μB=μC=μDH0:μA=μB=μC=μD


 HA:HA: At least one mean is different. (claim)


α=0.10α=0.10


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 H0H0

  • reject H0H0




The final conclusion is:





  • There is not enough evidence to support the claim that at least one school has a different class size.

  • There is not enough evidence to reject the claim that at least one school has a different class size.

  • There is enough evidence to reject the claim that at least one school has a different class size.

  • There is enough evidence to support the claim that at least one school has a different class size.




Jun 03, 2022
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