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Basic Question 6 of 9

What value does the null hypothesis make a claim about?

A. population parameter
B. sample mean
C. sample statistic

User Contributed Comments 5

User Comment
dipu617 Could anyone please clarify? Thank you.
robertucla It's in the first sentence in def dipu617
dbedford The null hypothesis Ho is represented by the tail(s) of the population's normal distribution and we want to reject the idea that the unknown parameter typically the mean is in the tail(s) and not toward the center
jgoff508 Dipu617, Boston area?

Someone please correct me if I'm wrong but, think of if this way.
The null is making a claim about an entire group.

The alternative is suggesting that the null isn't accurate, and make it's own claim.
thevinu Null Hypothesis speaks for an entire population parameter while alternative tries to reject the hypothesis using a sample statistic.
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Colin Sampaleanu

Learning Outcome Statements

explain hypothesis testing and its components, including statistical significance, Type I and Type II errors, and the power of a test

CFA® 2025 Level I Curriculum, Volume 1, Module 8.