p value using z score

Question

You are performing a two-tailed test for a population proportion with test statistic , find the p-value accurate to 4 decimal places.

p-value = 

i got 1.9956 but its wrong? i don't know what i'm doing wrong

Answer 1

Since it is a 2-sided test, the p-score is equal to P(z > 2.85) + P(z < -2.85). Since the normal distribution is symmetric that is the same as 2 * P(z < -2.85) = 2 * 0.0022 = 0.0044.