00:01
Hey there, welcome to numerade.
00:03
We have an airline promotion here saying that business travelers use a laptop computer for their overnight business trips.
00:13
So we have to state the hypotheses here that can be used to test the assumption.
00:20
So we have our null hypothesis and our alternative hypothesis.
00:25
So for this, we have it being is.
00:31
So is will correlate to an inequality of equals.
00:37
So that will just be our claim here.
00:40
So we have our population proportion equaling 0 .67, which is 2 thirds in decimal form, where the alternative will be the opposite does not equal 0 .67.
00:54
All right, so for part b, we're asked to find the sample proportion from a survey that found 355 out of 546 travelers with a laptop.
01:08
So we're going to take our sample proportion equals the 355 divided by the 546.
01:23
So i'm going to write our proportion here with three decimal place.
01:29
Is 0 .650.
01:32
All right...