A Method Currently Used by Doctors to Screen Women for Possible

Essay

A method currently used by doctors to screen women for possible breast cancer fails to detect cancer in 15% ofthe women who actually have the disease. A new method has been developed that researchers hope will beable to detect cancer more accurately. A random sample of 70 women known to have breast cancer werescreened using the new method. Of these, the new method failed to detect cancer in 8. Calculate the teststatistic used by the researchers for this test of hypothesis. Round to the nearest thousandth.