When should you use the z-test?
b. when you have two samples
c. when looking for the result of drawing at random from a box whose average is given
d. whenever you aren't sure which test to use
e. none of the above
a. answers b & c
You may use the calculator above and this area as scratch paper. To see the solution just click on the button.
Carlos Rodriguez <email@example.com>
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