In a box that contains 30 cards each with a number. The Ave is 33
and the SD is 4. If the confidence level is 95.5% then what is the
confidence interval.

Carlos Rodriguez <carlos@math.albany.edu>
This problem was contributed by a student in Elementary Statistics. It is offered as it is with no warranty of any kind
Last modified: Wed May 13 12:29:11 EDT 1998