A research team conducted a survey to check what proportion of preschool children in the Hillsborough county are vaccinated. A random sample of 150 preschool children in Hillsborough county revealed that 60 children had not been vaccinated.

What is the point estimate for the true proportion?

0.04

0.06

0.6

0.4

What is Maximal Margin of Error (E) at 95% confidence?

0.0658

0.0784

0.1032

0.784

Construct a 95% confidence interval for the true proportion of interest.

(0.334,0.466)

(0.322,0.478)

(0.297,0.503)

(0.522,0.678)