A Method Currently Used by Doctors to Screen Women for Possible

question 109

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.

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Definitions:

Better than Average Effect

A cognitive bias where individuals overestimate their own qualities and abilities compared to others.

Physical Attractiveness

The perception of an individual's physical traits as aesthetically pleasing or beautiful, often influenced by societal standards and personal preferences.

Self-other Knowledge Asymmetry

The disparity in knowledge that an individual has about themselves compared to what others know about them.

Self-perception Theory

A psychological theory suggesting that individuals develop their attitudes and feelings by observing their own behavior and concluding what attitudes must have caused them.