True vs. Sample for Hypothesis

[Marialaura]

When you are doing a difference between proportions in your null and alternative hypothesis when you define parameters do you say ex. P1= true proportion of… or P1= sample proportion of…

[Krish]

TRUE

GREAT Q

[bob.amar]

You should always use true proportions (parameters) in your hypotheses. Your hypotheses should never include statistics (sample proportions or means).