00:01
Hi, i'm david and i'm hitch to help you answer your question.
00:03
Now let me bring up your question here.
00:06
In the question here, when can you discuss about the hybrid testing? here we have the claim that 80 % college students identify themselves as the procrastinators.
00:19
And then a professor believed that this will be too high.
00:24
So it means that what you test the known hypothesis with the p -ecoachial 0188.
00:29
And the professors believe that p will be smaller than the z -188.
00:34
One step in the hybrid testing, we need to compute the test statistics.
00:40
And the formula for the test statistics, it will equal to the b -hat minus the p divided by square root in the p times 1 minus p devalued by n.
00:51
In this question here, we're given the p -hart, it will equal to, so we don't know the p -hart, we know that the n equals to the 272, the x equal to the 231...