00:01
Doing a margin of error problem here.
00:03
So we are told that we've got a p of 48%, and we are told that we have an n of 1 ,000.
00:15
I've gone ahead and written out the formula for margin of error up here.
00:19
Your margin of error is equal to 2 times the square root of p, which is your percent, specifically is the percent of people that are responding to whatever we're talking about in this case, then you have times the quantity of one minus that same p divided by n, which is the size of your sample.
00:41
So in that case then, we know we can't use 48 as our actual number because that's the percentage form.
00:50
What we need is to turn this into decimal form.
00:54
So to change a percent to a decimal, we need to divide by 100.
00:59
48 divided by 100 would give us 0 .48...