00:01
So for starters, we need to find the sample proportion.
00:07
So your sample proportion is the fraction of the sample that is the characteristic of interest.
00:12
In this case, identifying as bisexual.
00:17
So you would do the portion out of the total.
00:20
So we have 419 out of 713 respondents identified as bisexual.
00:41
And that's identify as bisexual using shorthand.
00:49
So two, calculate the standard error, where your standard error is a square root of p times 1 minus p over n, square root of 0 .587.
01:13
Sorry, this is 0 .587, so it's p times 1 minus 0 .587 over the total n, which is 0 .0184.
01:31
And three, determine the z -score.
01:36
So z is going to be 1 .645 at a 90 % confidence level...