If the population parameters are known, the t test is _________ powerful than the z test
a. more c. equally
b. less d. need more information
B
You might also like to view...
The effects of antidepressant medications include which of the following? a. They increase the velocity of action potentials in the brain. b. They prolong the effects of certain neurotransmitters
c. They help the heart keep a steady rhythm. d. They stimulate dopamine synapses in the nucleus accumbens.
Which progression best represents the historical order in which these psychological perspectives developed?
a. psychoanalytic theory, humanism, and structuralism b. ?structuralism, behaviorism, and humanism c. ?humanism, psychoanalytic theory, and cognitive psychology d. ?behaviorism, structuralism, and psychoanalytic theory
Which of these best exemplifies direct physical aggression?
a. Hitting a playmate b. Stealing a coveted toy c. Refusing to go to school d. Abusing drugs or alcohol
In which culture do parents tend to exert their authority for the longest period of time?
a. European American b. African American c. Asian American d. Latino