Based on a random survey of 1000 adult Canadians conducted in January 2001, a headline in The Globe and Mail (February 5, 2001) concluded that "fewer Canadians support free trade." In the survey, 64% of the respondents supported the North American free trade agreement, but in a 1999 survey 70% supported the agreement. Testing at the 0.01 level of significance, is there sufficient evidence to support the claim in the headline? (Assume that the number of Canadians surveyed in 1999 was 1000.) We are not told in the article how many Canadians were surveyed in 1999. Could it make a difference to our conclusion if our assumption of n = 1000 is incorrect? Explain.