Please Help In the past year, Yolanda watched 64 movies that she thought were very good. She watched 80 movies over the whole year. Of the movies she watched, what percentage did she rate as very good?

As a manufacturer of golf equipment, the spalding corporation wants to estimate the proportion of golfers who are left-handed. how many golfers must be surveyed if we want 99% confidence that the sample proportion has a margin of error of 0.025? assume that a previous study suggests that 20% of golfers are left-handed.