A champion archer can generally hit the bull s-eye 80% of the time. Suppose she shoots 200 arrows during competition. Let represent the percentage of bull s-eyes she gets (the sample proportion).
a) What are the mean and standard deviation of the sampling distribution model for?
b) Is a Normal model appropriate here? Explain.
c) Sketch the sampling model, using the 68 95 99.7 Rule.
d) What's the probability that she gets at least 85% bull s-eyes?