Correct Answer: B

Decision rule for hypothesis testing:

• If \(p \leq \alpha\): Reject the null hypothesis \((H_0)\)
• If \(p > \alpha\): Fail to reject the null hypothesis

Here, \(p = 0.03 \leq \alpha = 0.05\), so we reject \(H_0\).

Important note: Statistical significance does not automatically mean clinical significance. A nurse must also evaluate effect size and practical relevance. Saying 'accept the null hypothesis' is incorrect terminology in research — we only ever reject or fail to reject it.