This is why i hate stats.......

[PostWhore]

Type II error

Type II error, also known as an "error of the second kind", a β error, or a "false negative": the error of failing to reject a null hypothesis when the alternative hypothesis is the true state of nature. In other words, this is the error of failing to observe a difference when in truth there is one. This type of error can only occur when the statistician fails to reject the null hypothesis.

[Domain Diva]

Im totally lost can you break that down to help me

[V_RocKs]

I can't see your meaning.

[Diligent]

Fucked up wording, but...

Type II error...

this is the error of failing to observe a difference when in truth there is one

So he's saying this specific type of error ocurrs when the statistician doesn't spot a difference somewhere in the numbers, and there actually is one.

Don't ask me wtf the null hypothesis is though

[who]

Type II error

Type II error, also known as an "error of the second kind", a β error, or a "false negative": the error of failing to reject a null hypothesis when the alternative hypothesis is the true state of nature. In other words, this is the error of failing to observe a difference when in truth there is one. This type of error can only occur when the statistician fails to reject the null hypothesis.

[DjiXas]