Question: Davis Outboard Motors Inc recently developed an epoxy painting process

Davis Outboard Motors Inc. recently developed an epoxy painting process for corrosion protection on exhaust components. Bill Davis, the owner, wishes to determine whether the lengths of life for the paint are equal for three different conditions: saltwater, freshwater without weeds, and freshwater with a heavy concentration of weeds. Accelerated-life tests were conducted in the laboratory, and the number of hours the paint lasted before peeling was recorded. Five boats were tested for each condition.


Use the Kruskal-Wallis test and the .01 level to determine whether the lasting quality of the paint is the same for the three waterconditions.
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  • CreatedDecember 10, 2014
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