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In a small town in France a group of 400 women were observed. 20% of these women were found to have breast cancer. In order to determine the SE for the women with breast cancer, the first step would be: multiply the SD by the sample amount. Find the SD using the bootstrap method. Find the SD using the short-cut method. Find the SD using the standard method. none of the above.

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