# Question

Nondestructive evaluation (NDE) describes methods that quantitatively characterize materials, tissues, and structures by noninvasive means, such as X-ray computed tomography, ultrasonics, and acoustic emission. Recently, NDE was used to detect defects in steel castings (JOM, May 2005). Assume that the probability that NDE detects a “hit” (i.e., predicts a defect in a steel casting) when, in fact, a defect exists is .97. (This is often called the probability of detection.) Assume also that the probability that NDE detects a “hit” when, in fact, no defect exists is .005. (This is called the probability of a false call.) Past experience has shown that a defect occurs once in every 100 steel castings. If NDE detects a “hit” for a particular steel casting, what is the probability that an actual defect exists?

## Answer to relevant Questions

The local area network (LAN) for the College of Business computing system at a large university is temporarily shut down for repairs. Previous shutdowns have been due to hardware failure, software failure, or power failure. ...Find the numerical value of a. 6! b. c. d. P62 e. f. 0! g. P104 h. P502 The American Journal of Public Health (Jan. 2002) reported on a study of elderly wheelchair users who live at home. A sample of 306 wheelchair users, age 65 or older, were surveyed about whether they had an injurious fall ...A version of the dice game "craps" is played in the following manner. A player starts by rolling two balanced dice. If the roll (the sum of the two numbers showing on the dice) results in a 7 or 11, the player wins. If the ...Refer to the Applied Ecology and Environmental Research (Vol. 1, 2003) study of beech trees damaged by fungi, presented in Exercise. The researchers found that 25% of the beech trees in east central Europe had been damaged ...Post your question

0