A nationwide random survey of 1,500 teens aged 13–17 found that approximately 65% have their own desktop or laptop computer. Construct and interpret a 99% confidence interval for the true proportion of teens who have their own desktop or laptop computer.
State: confidence interval for the true proportion of teens who have their own desktop or laptop computer.:99%
Plan: ; Random: SRS; 10%: 1,500 is less than 10% of all teens; Large Counts: 975 successes and 525 failures ≥ 10.:one-sample z-interval for p
Conclude: We are 99% confident that the interval from includes the true proportion of all teens .:(0.618, 0.682)
Conclude: We are 99% confident that the interval from includes the true proportion of all teens .:who have a computer