Answer
The claim is that p < 0.45. Since it contains a strict less than, we have:
Null hypothesis $H_{o}: p \geq 0.45$
Alternative hypothesis $H_{a}: p < 0.45$
Work Step by Step
As given above
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.