Answer:
6.76
Step-by-step explanation:
Let us create hypothesies as
[tex]H_0: p =0.50\\H_a: p>0.50[/tex]
(right tailed test for claiming most adults would erase)
Sample proportion p = 0.64
n = sample size = 582
Std error of proportion= [tex]\sqrt{\frac{0.5*0.5}{582} } \\=0.0207[/tex]
P difference = 0.14
Test statistic = p difference/std error
= 6.755
=6.76