In a commercially available fingerprint scanner (e.g., for
your home or office PC) false acceptances are in 25 million for high-end
devices, with false rejection rates of around 3 percent. (a) Define Type I and
II error. (b) Why do you suppose the false rejection rate is so high compared
with the false acceptance rate? (Data are from Scientific American 288, no. 3
[March 2003], p. 98.)
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