Answer:
0.0134
Step-by-step explanation:
Hypothesis
Null hypothesis: p=0.1
Alternative hypothesis: p<0.1
Sample, n=500
Standard error for proportion= [tex]\sqrt {\frac{ p(1-p)}{n}}[/tex]
Standard error for population=[tex]\sqrt {\frac{ 0.1(1-0.1)}{500[/tex]
Standard error for a hypothesis test=0.0134