In a t test for dependent means in which 10 participants are each tested twice, the number of degrees of freedom is __________. (Give a number.)

A computer system programmed to simulate human thinking in solving problems and making judgments is called __________

a) an algorithm. b) artificial neural networking. c) robotics. d) artificial intelligence.

The ___________ system is composed of the brain and the nerves that extend throughout the body

a. nervous c. cardiovascular b. lymph d. blood