00:01
We have some sample data here.
00:02
We have a sample size n, 623.
00:07
Out of these 95, say, they regularly lie to people conducting surveys.
00:12
We want to make a confidence interval, but we want to use a calculator to do so.
00:17
So the formula, if you were to do this by hand, is p hat, the sample proportion for point estimate, plus and minus the margin of error, z root p hat, 1 minus p hat over n.
00:31
But using a calculator really simplifies the process.
00:36
So i'm going to use my ti -84.
00:40
First, i press stat to get to a list of statistical tests.
00:47
So we go to stat, we scroll over to tests, and we're looking for 1 prop z int...