Question

The null hypothesis in a hypothesis test refers to _____________.

Multiple Choice

• the level of significance

• the default state of nature or status quo

• the probability of rejecting the alternative hypothesis when it is false

• a particular population parameter specified with the sign ≠

Answer 1

The null hypothesis, denoted H_{​​​​​​o}, is the statement about the population parameter that is assumed to be true unless there is convincing evidence to the contrary .

So null hypothesis in a hypothesis test refers to default state of nature or status quo .

(Level of significance is alpha value , the population parameter which is denoted by sign "not equal" is aliter hypothesis and PROBABILITY of rejecting aliter hypothesis when it is false is PROBABILITY of committing type 2 error)