In a survey of 616 Canadian homeowners who have a wooden deck attached to their homes, Ipsos Reid found a substantial percentage had never inspected their decks for safety, 40% say they never really think about whether their deck is safe, and 11% say their deck “could collapse at any minute.” Interest in prefabricated materials for decks that are made of nondegradable, safer, and maintenance-free materials is high. The results for different parts of Canada are given in the table and are of considerable interest to those selling prefabricated decks, since 62% of Canadian homeowners have a deck. (Note that “ATL” in the table is all of the Atlantic provinces combined.)

Is there a difference among the provinces on these issues:

a) For inspection?

b) For prefabrication?

c) If there is a difference significant at the 95% level, identify which province contributes most to that difference and in what way.

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AB MB/SK ON ATL QC BC 25% 20% 18% 29% 16% 28% Never inspected Interested in prefabrication 84% 83% 77% 7% Percent of population 13% 11% 69% 81% 76% 39% 23% 76% 7%