A random sample of n = 4 scores is obtained from a normal population with µ = 30 and ? = 8 . What is the probability that the sample mean will be smaller than M= 22?
a. 0.00003 c. 0.1587
b. 0.0228 d. 0.3085
B
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Psychoactive drugs are
a. drugs that speed up activity in the central nervous system. b. drugs capable of influencing mental processes and behavior. c. drugs that slow down activity in the central nervous system. d. drugs derived from the opium poppy that relieve pain and produce euphoria. e. drugs that are capable of inhibiting the endocrine system functions.
According to research by Ward (1995), approximately 70% of interactions in television shows most popular with adolescents contained sex-related statements
Indicate whether this statement is true or false.
Thomas Szasz has criticized the medical model because he believes that abnormal behavior
A) ?involves deviation from social norms rather than an illness.
B) ?does not really exist since it is society that has problems.
C) ?has a psychological rather than a physical cause.
D) ?is based on the individual's subjective experience and choice.
On some nights, Rajesh gets up from bed, makes himself a sandwich, and eats it at the kitchen table—even though he is asleep the entire time. Which of the following is Rajesh LEAST likely to be experiencing during these episodes?
A. REM sleep B. Stage II sleep C. Stage III sleep D. Stage IV sleep