Statistics
posted by Johnny .
Opinion polls find that 13% of Americans "never have time to relax." If you take an SRS of 543 adults, the approximate distribution of the number in your sample who say they never have time to relax will be binomial with parameters:
n=
p=

From your problem:
n = sample size
p = percentage (change to decimal form when doing calculations)
I'll let you take it from here.