Schweser Q 1853 Hyphotesis testing concerned, testing, correct

ba736

If i am concerned whether a pupulation mean is 0.
My null hyphothesis should be ‘u’ not equal to 0.
My Alternative should be ‘u’ = 0 .
Am I correct or not?
Schweser answer seems to be the other way round.
I thought Null should always be the case where we are trying to reject?
Thanks for your help!

evolsteevol

Yes….mu seem to be always = 0 for the null.
I guess Schweser is right on that one.
What if I have case when I am concerned whether mu
Should my null be : mu >= ‘a’
and my alternative be : mu

tango_gs

nope. schweser is right.
your alternate is what you are trying to prove in the hyp testing scenarios.
Your Null: mu=0
Alternate: mu 0 ( Not equal to)
Always remember  null contains the = sign.