Nonverbal clues, such as hand gestures, head nods, etc. may not be easy to interpret as many people think. Suppose two groups (one high in confidence and the other average) were tested as to their ability to detect a liar. Each group viewed several job-interview videotapes where ten of the applications had substantially lied. Everyone was asked to detect the ten liars by watching and listening to the videotapes. At = .05, test the claim Find the P-value and Briefly discuss the results.\ n=38 x bar 4.2 s=1.8