In the middle school play of “Braintastic,” Joss plays the part of one of the forebrain structures. During her lines, she says, “I am like a relay station. I send signals from the senses to higher levels of the brain to make sense of the information.” Joss is playing the part of the ____.?

What does one-sample t-test compare?

A. A sample mean to a sample population B. A sample mean to a population mean C. A population mean to a sample population D. A sample mean to a sample population

According to Ekman's research on facial expressions ________

a. when people try to hide their feelings with an inauthentic expression, they use different groups of muscles than they do for authentic emotions. b. authentic smiles last ten seconds or more, whereas false smiles last only about two seconds. c. when trying to feign sadness, only about 60 percent of people manage to get the eyebrows, eyelids, and forehead wrinkle exactly right. d. there is little support for Darwin's evolutionary theory that certain human facial expressions are innate.