PLEASE HELP

In a following study of red and green colour blindness, 500 men and 2100 women are randomly selected and tested. Among the men, 55 have red and green colour blindness. Among the women, 8 have red and green colour blindness.'

Suppose the 95% CI is (6.19%, 11.23%), then the margin of error in estimating the difference in proportion of red/green colour blindness in men to women is

Express the answer to three decimal places.