Video gaming In a 2006 poll, 40% of American adults
Chapter 5, Problem 5.53(choose chapter or problem)
Video gaming In a 2006 poll, 40% of American adults surveyed said that they play computer or video games. Of those who played such games, 10% reported playing for 10 or more hours per week. According to the Associated Press, Th e results are taken from a poll of 3,024 adults, including 1,046 who play electronic games, that was conducted April 1827. Th e poll, conducted by the international polling fi rm Ipsos, has a margin of sampling error of plus or minus 2 percentage points, 3 points for the sample of those who play electronic games.11 (a) Use the quick method to show that the margins of error quoted above are approximately correct if a simple random sample was taken. (b) Th e confi dence level wasnt stated, but its almost certainly 95%. Make an appropriate confi dence statement about video gaming in the population of American adults. (c) Identify two possible sources of error in this survey that the margin of error does not include. (d) If this survey were repeated today, do you think the results would be about the same? Do some research to fi nd whether your suspicion is correct
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