Question 12 (3 marks) According to a survey conducted by Leger Marketing among 800 Canadians under the age of 40, 600 respondents consider that their future prospects compared to their parents' generation are better. Determine the lower bound of an 80% confidence interval and the margin of error for the proportion p of Canadians under 40 who hold this view. 72.48% and 2.5% 73.04% and 2% 72% and 2.5% 73.04 and 2.2% 72.8% and 2.2%