00:01
Hi, i'm david and i'm here to help you and see your question.
00:03
In the question here, a flight will be profitable if it needs at least the 65 % of the occupancy.
00:12
It means that we want to test if the flight will be unprofitable.
00:19
It means then when to test the known hypothesis that the mean will be greater than equal to the 65 and then versus the alternative hypothesis.
00:31
That the mean will be smaller than the 65.
00:35
And with this answer here we see the right one, we can put an equal here, and we have smaller than, so therefore that will be the first option.
00:50
And then the next one here, does the alternative hypothesis in the part a imply a one or two -tile test because this will be smaller than.
01:01
So therefore, we say, this one will be the one tell test.
01:14
And we will have, since the synony's small value on the x bar would be tend to disapprove the known hypothesis.
01:22
This is the one tell test.
01:25
And then we will have the right one will be the second option.
01:37
And for the questions, this will be the p, this will be the a...