00:01
Hi, i'm david and i'm here to have your question.
00:03
Now let me bring up your question here.
00:05
Let me make it bigger.
00:07
In the question here, we are going to discuss about the hybrid testing.
00:12
Here we will test the claim that less than 10 % on the treated subject experienced hand deck.
00:18
It means then when you test the known hypothesis when the proportion b.
00:23
It will equal to the 10 % versus the alternative hypothesis when the proportion b will be like.
00:30
Less than the 10%.
00:32
And notice that this will be the left tail test.
00:37
And notice that the 10 % equal to the 0 .11.
00:40
Now here we give in the sample size n equal to the 265 and the x equal to the 23.
00:47
So the first time we need to find the sample proportion b heart equal to the x over n equal to the 23 over the 265.
00:56
Then we have the 23 divided the 265.
01:00
Equal to the zb .0 .087.
01:03
And then the next time we need to find the test statistics.
01:08
And then here we will answer is this one will be the two tail on the left tail on the right tail.
01:14
So that will be the left tail.
01:16
The test statistics here, it will equal to the z.
01:19
The formula will be the p hod minus p over square root the p times 1 minus p over n.
01:25
Then we have p hot equal to the zerp 87...