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1000 draws are made at random from a box. The null hypothesis states that the average of the box is 40. The observed average was 41.2 and the SD was 20. z and P approximate: z=1.9, P=3.8% z=.632, P=25% z=1.2, P=11.5% z=2.9, P=1.9% z=1.9, P=2.9%

You may use the calculator above and this area as scratch paper. To see the solution just click on the button.

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