Can we draw the following hypothesis from the context?

Context:

How to say no to a child and mean it<br>Say " no " in a clear, firm tone. Start by saying " no " in a tone that is clear, firm, and in control. Raise your voice so the child can hear you but do not yell or scream when you say " no.

Hypothesis: Say " no " in a clear, firm tone. Start by saying " no " in a tone that is unclear, firm
No