A poll conducted in 2013 found that 52 percentage of U.S. adult Twitter users ge
ID: 3177124 • Letter: A
Question
A poll conducted in 2013 found that 52 percentage of U.S. adult Twitter users get at least some news on Twitter, and the standard error for estimate was 2.4 percentage. Identify each of the following statements as true or false. If we want to reduce the standard error of the estimate to half of what it is now, we would need to double the sample Because the standard error is 2.4 percentage, we can conclude that only 2.4 percentage of people in the study communicated uncertainty about their answer. If we construct a 99 percentage confidence interval for the percentage of U.S. adults Twitter users who get some news through Twitter, this confidence interval will be wider than a corresponding 90% confidence interval.Explanation / Answer
1) false as we have to make sample size 4 time to redue std error half.
2)false
3)true ;as increasing confidence interval increases the width of interval