A random sample of 500 observations produced a sample proportion equal to 0.39. Find the critical and observed values of z for the following test of hypotheses using α=0.025....

A random sample of 500 observations produced a sample proportion equal to 0.39. Find the critical and observed values ofz for the following test of hypotheses using α=0.025.

H0: p=0.30 versus H1: p≠0.30.

Round your answers to two decimal places.

z
_{critical left} =Enter your answer; z_critical left

z
_{critical right} =Enter your answer; z_critical right

z
_observed =Enter your answer; z_observed