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An Experimenter Was Interested in the Accuracy of a New

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An experimenter was interested in the accuracy of a new type of polygraph (lie detector)test. To test this, a polygraph operator used the machine on a participant who was told ahead of time to lie about some of the questions being asked. In an average situation of this type, the polygraph test is 75% accurate with a standard deviation of 6.5%. With the new machine the operator correctly identified 83.5% of the false responses. Is the accuracy of the new polygraph different from the usual ones? (Use the .05 level.)
a. Use the five steps of hypothesis testing.
b. Sketch the distributions involved.
c. Explain the logic of what you did (be sure your explanation includes the overall logic of hypothesis testing, including each of the five steps).

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Definitions:

Skilled Care Facility

A healthcare institution providing 24-hour services of skilled nursing or therapy staff to manage, observe, and evaluate care for patients.

Verbal Assaults

Aggressive behavior involving the use of words or language intended to threaten, harm, or intimidate another person.

Pain Medication

Drugs specifically designed to reduce or alleviate pain, ranging from over-the-counter analgesics to prescription opioids.

Swearing Loudly

The act of using profane or offensive language in a high volume, often as an expression of anger or frustration.

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