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Aldrich Ames is a convicted traitor who leaked American secrets to a foreign power. Yet Ames took routine lie detector tests and each time passed them. How can this be done? Recognizing control questions, employing unusual breathing patterns, biting one's tongue at the right time, pressing one's toes hard to the floor, and counting backwards by 7 are countermeasures that are difficult to detect but can change the results of a polygraph examination†. In fact, it is reported in Professor Ford's book that after only 20 minutes of instruction by "Buzz" Fay (a prison inmate), 85% of those trained were able to pass the polygraph examination even when guilty of a crime. Suppose that a random sample ofelevenstudents (in a psychology laboratory) are told a "secret" and then given instructions on how to pass the polygraph examination without revealing their knowledge of the secret. What are the following probabilities? (Round your answers to three decimal places.)
(a) all the students are able to pass the polygraph examination
(b) more than half the students are able to pass the polygraph examination
(c) no more than half of the students are able to pass the polygraph examination
(d) all the students fail the polygraph examination
Shown here are the various prizes and the probability of winning each prize. Use these data to compute the expected value of the game, the variance of the game, and the standard deviation of the game.
Why did the authors use multiple regression? Do you think it's the most appropriate choice? Why or why not? Did the authors display the data?
a random sample of 2000 men and 2700 women in the age group of 18 to 25 were asked if they still live with their
a) What is the proportion of vehicles with a speed up to the limit? b) What proportion of the vehicles would be going less than 95 Km/h?
If inventory is $1,200, what is the current ratio?
Assume one person is chosen randomly from the 1858 people in the table given in Exercise. What is the probability that the person is liberal OR a Democrat?
At the .01 significance level can we conclude the mean age is more than 8.4 years for the cars of university students? State the null hypothesis and the alternate hypothesis.
Conduct a hypothesis test to determine if the population mean time on death row could likely be 15 years. In words, define the Random Variable for this test.
What is the dilution factor for 2mM of KMnO4 in serial dilution to make 6 mL of each of the following 1.0mM, .5mM, 250 micromilli
a.briefly restate your research area of interest.b.identify at least 2 variables for which you would utilize a repeated
The project will produce cash inflows of $8,000 a year for the first two years and $12,000 a year for the following three years. What is the payback period?
A researcher asks the question "Is there a relationship between LSAT total scores and GPAs in the master's programs in nuclear physics?"
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