At most 68% of people mind if others smoke near a building entrance.

Question

At most 68% of people mind if others smoke near a building entrance. Express the null and alternative hypotheses in symbolic form for this claim (enter as a percentage).

Answer 1

Hi Emma,

Null and alternative hypotheses are always about a population. In this case, it's a population proportion, 68%, so:

H0: p = 68%

Now, the problem stipulates at most, so that requires a less-than alternative, so:

HA: p < 68%

I hope this helps.