The table below contains summary statistics of measurements of the same variable for four different groups....

The table below contains summary statistics of measurements of the same variable for four different groups.

Statistics	1	2	3	4
n	10	10	10	10
xbar	2	2	6	8
s^2	20	20	20	20

(a) Write down the ANOVA table for this data, including the sum ofsquares, degrees of freedom, and mean square for each group.

Source of VariationDegree of freedomSum of SquaresMean Square

Treatment

Error

Total

b) Using a 5% significant level, test whether these four factor levels havethe same mean or not.

Expert Solution

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orchestra answered 1 year ago

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