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There are two boxes. One box (box 1) has an Ave of 25 and an SD of 10. 25 draws are taken from this box. Another box (box 2) has an Ave of 39 and an SD of 15. 25 draws are also being taken out of this box. The null hypothesis says that the Ave from box 1 and 2 are equal. Reject or accept the null hypothesis and find the z-value. 3.7, accept 3.9, reject 3.4, reject 4.1, reject 4.3, accept

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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