Question: Sixty older homes are randomly divided into four groups. Homes in each group are retrofitted with a different type of insulation, and then the change

Sixty older homes are randomly divided into four groups. Homes in each group are retrofitted with a different type of insulation, and then the change in energy consumption is recorded. A portion of the ANOVA table is given below. Complete the table, and draw the appropriate conclusion assuming α = 5%.

Source df SS MS F Between 155 Within 896 Total

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