A researcher has reason to be that, for an experiment with 50 points, a 95% prediction interval would be of width 4. If the researcher wishes to run a more precise experiment that will result in a 95% prediction interval of width 2, then the researcher will require
A) 200 points B) More than 200 points C) 50 points D) 25 points
Answer and Detailed explanation is provided. The expert provides the sample size intervals.