Let $z$ be a quantile of standard normal distribution. Find p-value for $z=1.89$ and $H_a : \mu>\mu_0$.
The way I tried solving this was by getting the area right of $x=1.89$, which is $0.02938$ but this isn't the correct answer. Including the left tail gives a p-value twice that, around $0.0588$. However, this seems intuitively wrong, since we're dealing with a "one sided" inequality. Either way, I have trouble figuring out how I should go about solving the problem with so little information and how to factor in the hypothesis.