A researcher has reason to believe that, for an experiment with 30 points, a 95%
prediction interval would be of width 8. If the researcher wishes to run a more
precise experiment that will result in a 95% prediction interval of width 4, then
the researcher will require how many points?

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The Answer of A researcher has reason to believe that, for an experiment with 30 points, a 95%
prediction interval would be of width 8. If the researcher wishes to run a more
precise experiment that will result in a 95% prediction interval of width 4, then
the researcher will require how many points?

A Researcher Has Reason to Believe That, for an Experiment