:5a. For this problem, refer to the data of the previous
problem. An approximate 99.7% confidence interval for the
percentage of tickets in the box which are marked with a 4 is
given by
a. 20% +/ 12%

b. 20% +/ 8%

c. 20% +/ 4%

d. 20% +/ 2%

e. 20% +/ 1%