Poll results usually state a margin of error that describes how reliable the data is. Ex.4: A pollster conducted a survey about video gaming habits among teenagers. Of the 1200 teenagers surveyed, 65% said they played video games at least 2 hours per day. The survey is considered accurate within 2.9%, 19 times out of 20, or 95% of the time. a) Explain what this means. b) Is it accurate to say that the majority of teenagers play an excessive amount of video games? HW: p.201 #1-4, 7-11
Poll results usually state a margin of error that describes how reliable the data is. Ex.4: A pollster conducted a survey about video gaming habits among teenagers. Of the 1200 teenagers surveyed, 65% said they played video games at least 2 hours per day. The survey is considered accurate within 2.9%, 19 times out of 20, or 95% of the time. a) Explain what this means. b) Is it accurate to say that the majority of teenagers play an excessive amount of video games? HW: p.201 #1-4, 7-11