WeBWorK Standalone Renderer

An article in the Washington Post on March 16, 1993 stated that nearly 45 percent of all Americans have brown eyes. A random sample of $n = 78$ C of I students found 30 with brown eyes.
We test

$H_0: p = .45$
$H_a: p \neq .45$

(a) What is the $z$ -statistic for this test?

(b) What is the P-value of the test?

You can earn partial credit on this problem.