A Method Currently Used by Doctors to Screen Women for Possible

question 38

Essay

A method currently used by doctors to screen women for possible breast cancer fails to
detect cancer in 20% of women who actually have the disease. A new method has been
developed that researchers hope will be able to detect cancer more accurately. A random
sample of 90 women known to have breast cancer were screened using the new method.
Of these, the new method failed to detect cancer in eight. Specify the null and alternative
hypotheses that the researchers wish to test.

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Definitions:

Active Listener

An individual who fully concentrates, understands, responds, and then remembers what is being said in a conversation.

Non-Verbal Cues

Forms of communication that do not use words but convey messages through body language, facial expressions, gestures, posture, and tone of voice.

Constructive Feedback

Feedback provided in a manner intended to help and encourage the recipient to improve or advance in certain areas.

Receiver

The individual or entity that receives a message or information, playing a critical role in the communication process.