The National Center for Border Security and Protection has developed the "Embodied Avatar"-a kiosk with a computer-animated border guard that uses artificial intelligence to scan passports, check fingerprints, read eye pupils, and ask questions of travelers crossing the U.S. border. (National Defense Magazine, February 2014.) On the basis of field tests, the avatar's developer claims that the avatar can detect deceitful speech correctly 75% of the time.
a. Identify the parameter of interest.
b. Give the null and alternative hypotheses for testing the claim made by the avatar's developer.
c. Describe a Type I error in the words of the problem.
d. Describe a Type II error in the words of the problem.