2. A confidence interval estimate is determined from the SAT scores. All other things being equal,which of the following will result in a small margin of error? I. Smaller standard deviation. II....

2. A confidence interval estimate is determined from the SAT scores. All other things

being equal,which of the following will result in a small margin of error?

I. Smaller standard deviation.

II. Bigger sample size.

III. Smaller width of confidence interval.

A) I and II B) I and III C) II and III D) I, II, and III E) II