The prevalence rate of Hypertension among US adults is 30 We

The prevalence rate of Hypertension among US adults is 30%. We plan to draw a random sample of 65 people from that population. What is the standard error of the sample proportion of hypertension?

0.057

0.075

0.570

0.750

Solution

Standard Error = Sqrt(p*(1-p)/n))
x = Mean
n = Sample Size,
Mean(x)=19.5
Sample Size(n)=65
Sample proportion =0.3
Standard Error = Sqrt ( (0.3*0.7) /65) )
= 0.0570