An important decision faces Christmas holiday celebrators: buy a real or artificial tree? A sample of 1,508 male and female respondents 18 years of age and over was interviewed. Respondents were asked whether they preferred a real (1) or artificial (2) tree. If there are 6 million Canadian households that buy Christmas trees, estimate with 95% confidence the total number of Canadian households that would prefer artificial Christmas trees.
Answer to relevant QuestionsA professor of business statistics recently adopted a new textbook. At the completion of the course, 100 randomly selected students were asked to assess the book. The responses are as follows:Excellent (1), Good (2), ...GSS2012* Estimate with 95% confidence the number of American adults in 2012 who did not finish high school (DEGREE: 0 = Left high school, 1 = High school, 2 = Junior college, 3 = Bachelor’s degree, 4 = Graduatedegree).Among conservatives and liberals only is there sufficient evidence to conclude that there are more conservatives (POLVIEWS3: 1 = liberal, 2 = moderate, 3 = conservative)?Is there sufficient evidence to conclude that more than 33% of American adults have at least a Bachelor’s degree (DEGREE: 0 = Left high school, 1 = High school, 2 = Junior college, 3 = Bachelor’s degree, 4 = Graduate ...Suppose the survey in the previous exercise also asked those who were not in the top 1% whether they believed that within 5 years they would be in the top 1% (1 = will not be in top 1% within 5 years and 2 = will be in top ...
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