This is statistics. i need a bit of on this, i would really appreciate it.

in a survey of senior executives, 47.3% said that the most common job interview mistake is to have little or no knowledge of the company.
the claim is that in the population of all senior executives, 50% say that the most common job interview mistake is to have little or no knowledge of the company.
assuming a 0.01 significance level and a test statistic of z = 2.98, find the p-value.