(5) a group wants to study the percent of voters who are in favor of the presidents
signature health care law, the affordable care act (aka obamacare). the researchers
find that the 95% confidence interval for the number of supporters is 45% with a
margin of error of 3%
a. fill in the blanks in the following statement: the researchers are 95% confident
that the percentage of voters in favor of obamacare is between
and
b. what was the approximate sample size in the study?