00:01
Hi, i'm david and i'm here to have you answer your question.
00:03
Now let me bring up your question here.
00:06
In the question here, we are going to discuss about the summary distribution of the sample proportion.
00:12
Let me remind you that under certain conditions, the symbol of proportion p heart could be approximately to the normal.
00:18
In such a way that it will tend the p hot will minus the b over square root to the p times 1 minus p over n.
00:26
We obtain the standard normal.
00:28
In the question here, we have the p equal to the 6.
00:31
Of the american population are at least 17 years of age, will be the 0 .06.
00:38
Here we have the symbol n equal to the 150.
00:43
And here i want to find the probability that the same proportion, here will be less than 4%...