00:03
So this is a problem.
00:05
I think i just answered this one already.
00:07
I think this is a duplicate.
00:08
This is a problem on setting up the null and alternate hypotheses.
00:14
They're using the parameter p because it's a proportion problem.
00:19
So if you go to your null, your null hypothesis is always h -o, and your alternate is always h -1.
00:28
So you always want to put your parameter p there.
00:31
And then in your alternate hypothesis, the symbol that goes after the p is going to be a less than, a greater than, or a not equal to.
00:43
It's got to be one of those three.
00:46
And then you go to the problem and see which one it is.
00:49
So if you go to the problem, it says, an entomologist writes an article in a scientific journal which claims, here's the keyword, that fewer than 16 in 10 ,000 male fireflies, are unable to produce light due to a genetic mutation.
01:08
So because it says fewer than 16 and 10 ,000, you're going to use the less than symbol here...