A current literacy study reported that 86% of 1,004 randomly sampled Canadians read at least one book in past year, compared to 81% of 1,009 randomly sampled Americans. Do such results point to that the percentage of Americans who read at least one book in past year is less than the percentage of Canadians?
Make a 95% confidence interval for the difference in the proportion of Americans and Canadians who read at least one book in the last year. Interpret your interval.