00:01
So this problem wants us to find the null and alternative hypothesis to this scenario.
00:06
The mean salary is $58 ,000, but we think it might actually be higher.
00:13
So just a housekeeping note, normally in statistics, you write mean as the letter mu.
00:20
Kind of looks like a u.
00:22
So i'm going to be using the letter mu in this problem.
00:26
It just means mean.
00:28
Null and alternative hypothesis.
00:32
Normally write those as h -0 for null hypothesis and h -a for alternative hypothesis.
00:41
Now, how do we know which one is which? normally, the scenario, the question is describing, is the alternative hypothesis.
00:51
The alternative hypothesis means that either our sample is different from the population, or that two groups are different than one another, it's usually the one that we want to conclude or the one that we're trying to test...