In: Statistics and Probability
A study claims that 75% of children under the age of 13 in
British Columbia have been vaccinated from the chicken pox. A
survey of randomly selected residents of a certain city included
650 children who were under the age of 13, and 197 of them were not
vaccinated.
What is the approximated probability that sample
proportion of non-vaccinated children in a sample of 650 children
is more than 197/650? (Please carry answers to at least six decimal
places in intermediate steps. Give your final answer to the nearest
three decimal places).