I am having some confusion. In problems 1 and 2, we used the claim as the alternative hypothesis, but in this problem, we seem to be doing the opposite. Can you explain why this is the case?
hi, what about the lower tail? don't you need to prove its greater than the lower critical value too? how would you do this since you can't do 0.975 in an f table?
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in question there is 5% level why 0.025 and not 0.5 ?
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I am having some confusion. In problems 1 and 2, we used the claim as the alternative hypothesis, but in this problem, we seem to be doing the opposite. Can you explain why this is the case?
The claim is whatever is stated in the wording of the problem. If the claim uses either >,
hi, what about the lower tail? don't you need to prove its greater than the lower critical value too? how would you do this since you can't do 0.975 in an f table?
Sir, why the Ha is not sigma²m = sigma²f ?
It’s just a typo. I meant to write the square.
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