Mathematics, 14.04.2020 16:05, Emptypockets451
Polygraph lie-detector machines are commonly used in criminal investigations. The device measures nervous excitement, operating on the idea that if a person is telling the truth they will remain calm. The American Polygraph Association claims that polygraphs accurately identify liars 90% of the time. In other words, if a person lied the test results will be positive 90% of the time. Although the polygraph test is good at identifying liars, there is a 50% chance that the polygraph test will say a truthful person is lying. A police force wants to predict the accuracy of lie-detector tests for 1,000 suspected criminals. Assume that 700 per 1,000 suspected criminals tell the truth during polygraph tests. Lie Truth Row Totals Test result: negative P Test result: postive Q Column Totals 1,000 Barber, N. (2013). Do Lie Detectors Work? Psychology Today . What is the value of Q?
Answers: 3
Mathematics, 21.06.2019 14:00, ASTROBOY1
Do graduates from uf tend to have a higher income than students at fsu, five years after graduation? a random sample of 100 graduates was taken from both schools. let muf be the population mean salary at uf and let mufsu be the population mean salary at fsu. how should we write the alternative hypothesis?
Answers: 2
Mathematics, 21.06.2019 15:10, morganmsaylor1365
Point a is located at (0, 4), and point c is located at (−3, 5). find the x value for the point b that is located one fourth the distance from point a to point c. −0.25 −0.5 −0.75 −1
Answers: 1
Mathematics, 22.06.2019 00:00, tyryceschnitker
The amount of data left on the cell phone six gb for 81.5 gb of data is used how much data is available at the beginning of the cycle
Answers: 2
Polygraph lie-detector machines are commonly used in criminal investigations. The device measures ne...
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