Trouble getting Ho/Ha right in hypothesis questions
I have come across a few hypothesis questions where the QBank answer actually did not assume the contrary to the fact being tested. Such as in:
“A bottler of iced tea wishes to ensure that an average of 16 ounces of tea is in each bottle…” (Schweser question ID 22960)
What is wrong with assuming Ho:=mean NOT equal to 16 and Ha:= mean IS equal to 16?
Is Schweser just plain wrong or am I getting my head mixed up? |
发表于 2013-4-16 09:48
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