According to a recent random survey of 3,728 US adults, 1,939 report using their cell phones to play online games. Construct and interpret a 95% confidence interval for the proportion of US adults who use their cell phones to play online games. State: confidence interval for the true proportion of US adults who use their cell phones to play online games. Plan: ; Random: Random survey; 10%: 3,728 is less than 10% of all US adults; Large Counts: 1,939 successes and 1,789 failures ≥ 10. Do: Conclude: We are 95% confident that the interval from includes the true proportion of all US adults to play online games.
State: confidence interval for the true proportion of US adults who use their cell phones to play online games.:95%
Plan: ; Random: Random survey; 10%: 3,728 is less than 10% of all US adults; Large Counts: 1,939 successes and 1,789 failures ≥ 10.:one-sample z-interval for p
Conclude: We are 95% confident that the interval from includes the true proportion of all US adults to play online games.:(0.504, 0.536)
Conclude: We are 95% confident that the interval from includes the true proportion of all US adults to play online games.:who use their cell phones