Video Games An investor is considering funding of a new video game. She wants to know the worldwide percentage of people who play video games, so a survey is being planned. How many people must be surveyed in order to be 90% confident that the estimated percentage is within three percentage points of the true population percentage?
a. Assume that nothing is known about the worldwide percentage of people who play video games.
b. Assume that about 16% of people play video games (based on a report by Spil Games).
c. Given that the required sample size is relatively small, could you simply survey the people that you know?
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